[OTA] Set OTA Requestor server attributes in CHIP context

[carol-apple]

Problem

The OTARequestor was calling into core CHIP functionality (updating server attribute states) at start up on the main thread. This should be done in the CHIP context.

Fixes: #15128

Change overview

• Create a callback function to be run in the CHIP context
• Schedule the work from OTARequestor::Init

Testing

• Verified that core CHIP functionality is not called on the main thread
• Verified that basic transfer between requestor/provider succeeds

[github-actions]

PR #16041: Size comparison from 6081193 to a43b170

Increases (5 builds for cyw30739, efr32, k32w, linux)

platform	target	config	section	6081193	a43b170	change	% change
cyw30739	ota-requestor	cyw930739m2evb_01	(read/write)	570466	570482	16	0.0
			.app_xip_area	466816	466832	16	0.0
efr32	lighting-app	BRD4161A	(read only)	922528	922560	32	0.0
			.text	922520	922552	32	0.0
		BRD4161A+rpc	(read only)	951356	951372	16	0.0
			.text	951348	951364	16	0.0
k32w	light	k32w061+release	(read/write)	696508	696524	16	0.0
			.text	610992	611008	16	0.0
linux	ota-requestor-app	debug	(read only)	1912753	1912897	144	0.0
			.text	1607186	1607330	144	0.0

Full report (26 builds for cyw30739, efr32, esp32, k32w, linux, mbed, p6, telink)

platform	target	config	section	6081193	a43b170	change	% change
cyw30739	light	cyw930739m2evb_01	(read/write)	602202	602202	0	0.0
			.app_xip_area	506720	506720	0	0.0
			.bss	78172	78172	0	0.0
			.data	652	652	0	0.0
			.rodata	0	0	0	0.0
			.text	0	0	0	0.0
	lock	cyw930739m2evb_01	(read/write)	560078	560078	0	0.0
			.app_xip_area	466132	466132	0	0.0
			.bss	76676	76676	0	0.0
			.data	616	616	0	0.0
			.rodata	0	0	0	0.0
			.text	0	0	0	0.0
	ota-requestor	cyw930739m2evb_01	(read/write)	570466	570482	16	0.0
			.app_xip_area	466816	466832	16	0.0
			.bss	86060	86060	0	0.0
			.data	552	552	0	0.0
			.rodata	0	0	0	0.0
			.text	112	112	0	0.0
efr32	lighting-app	BRD4161A	(read only)	922528	922560	32	0.0
			(read/write)	128896	128896	0	0.0
			.bss	126856	126856	0	0.0
			.data	2040	2040	0	0.0
			.text	922520	922552	32	0.0
		BRD4161A+rpc	(read only)	951356	951372	16	0.0
			(read/write)	144852	144852	0	0.0
			.bss	142632	142632	0	0.0
			.data	2220	2220	0	0.0
			.text	951348	951364	16	0.0
	window-app	BRD4161A	(read only)	854412	854412	0	0.0
			(read/write)	126852	126852	0	0.0
			.bss	124936	124936	0	0.0
			.data	1916	1916	0	0.0
			.text	854404	854404	0	0.0
esp32	all-clusters-app	c3devkit	(read only)	958694	958694	0	0.0
			(read/write)	1393802	1393802	0	0.0
			.dram0.bss	63576	63576	0	0.0
			.dram0.data	14220	14220	0	0.0
			.flash.rodata	197088	197088	0	0.0
			.flash.text	958694	958694	0	0.0
			.iram0.text	62016	62016	0	0.0
		m5stack	(read only)	1013687	1013687	0	0.0
			(read/write)	461052	461052	0	0.0
			.dram0.bss	69096	69096	0	0.0
			.dram0.data	34064	34064	0	0.0
			.flash.rodata	226056	226056	0	0.0
			.flash.text	1008303	1008303	0	0.0
			.iram0.text	123107	123107	0	0.0
k32w	light	k32w061+release	(read/write)	696508	696524	16	0.0
			.bss	77792	77792	0	0.0
			.data	1924	1924	0	0.0
			.text	610992	611008	16	0.0
	lock	k32w061+release	(read/write)	697016	697016	0	0.0
			.bss	77704	77704	0	0.0
			.data	1964	1964	0	0.0
			.text	611548	611548	0	0.0
linux	all-clusters-app	debug	(read only)	2432289	2432289	0	0.0
			(read/write)	145872	145872	0	0.0
			.bss	60352	60352	0	0.0
			.data	1360	1360	0	0.0
			.data.rel.ro	78424	78424	0	0.0
			.dynamic	592	592	0	0.0
			.got	4176	4176	0	0.0
			.init	27	27	0	0.0
			.init_array	936	936	0	0.0
			.rodata	205765	205765	0	0.0
			.text	2063538	2063538	0	0.0
	bridge-app	debug+rpc	(read only)	1737061	1737061	0	0.0
			(read/write)	92784	92784	0	0.0
			.bss	47624	47624	0	0.0
			.data	2016	2016	0	0.0
			.data.rel.ro	38064	38064	0	0.0
			.dynamic	592	592	0	0.0
			.got	3928	3928	0	0.0
			.init	27	27	0	0.0
			.init_array	544	544	0	0.0
			.rodata	141964	141964	0	0.0
			.text	1479125	1479125	0	0.0
	chip-tool	debug	(read only)	10095253	10095253	0	0.0
			(read/write)	358168	358168	0	0.0
			.bss	25640	25640	0	0.0
			.data	1152	1152	0	0.0
			.data.rel.ro	325352	325352	0	0.0
			.dynamic	608	608	0	0.0
			.got	4776	4776	0	0.0
			.init	27	27	0	0.0
			.init_array	616	616	0	0.0
			.rodata	514388	514388	0	0.0
			.text	8798181	8798181	0	0.0
	chip-tool-ipv6only	arm64	(read only)	9730988	9730988	0	0.0
			(read/write)	475969	475969	0	0.0
			.bss	43953	43953	0	0.0
			.data	1200	1200	0	0.0
			.data.rel.ro	371712	371712	0	0.0
			.dynamic	560	560	0	0.0
			.got	55304	55304	0	0.0
			.init	24	24	0	0.0
			.init_array	192	192	0	0.0
			.rodata	492004	492004	0	0.0
			.text	8187796	8187796	0	0.0
	door-lock-app	debug	(read only)	1951521	1951521	0	0.0
			(read/write)	119296	119296	0	0.0
			.bss	50656	50656	0	0.0
			.data	1056	1056	0	0.0
			.data.rel.ro	62184	62184	0	0.0
			.dynamic	592	592	0	0.0
			.got	4112	4112	0	0.0
			.init	27	27	0	0.0
			.init_array	664	664	0	0.0
			.rodata	173852	173852	0	0.0
			.text	1629026	1629026	0	0.0
	lighting-app	debug+rpc	(read only)	2083689	2083689	0	0.0
			(read/write)	124616	124616	0	0.0
			.bss	51456	51456	0	0.0
			.data	1536	1536	0	0.0
			.data.rel.ro	66104	66104	0	0.0
			.dynamic	608	608	0	0.0
			.got	4144	4144	0	0.0
			.init	27	27	0	0.0
			.init_array	736	736	0	0.0
			.rodata	166044	166044	0	0.0
			.text	1761986	1761986	0	0.0
	ota-provider-app	debug	(read only)	1884793	1884793	0	0.0
			(read/write)	114896	114896	0	0.0
			.bss	50464	50464	0	0.0
			.data	1320	1320	0	0.0
			.data.rel.ro	57464	57464	0	0.0
			.dynamic	608	608	0	0.0
			.got	4368	4368	0	0.0
			.init	27	27	0	0.0
			.init_array	616	616	0	0.0
			.rodata	159091	159091	0	0.0
			.text	1574978	1574978	0	0.0
	ota-requestor-app	debug	(read only)	1912753	1912897	144	0.0
			(read/write)	117864	117864	0	0.0
			.bss	51584	51584	0	0.0
			.data	1480	1480	0	0.0
			.data.rel.ro	59368	59368	0	0.0
			.dynamic	592	592	0	0.0
			.got	4160	4160	0	0.0
			.init	27	27	0	0.0
			.init_array	640	640	0	0.0
			.rodata	155052	155052	0	0.0
			.text	1607186	1607330	144	0.0
	shell	debug	(read only)	2398465	2398465	0	0.0
			(read/write)	150088	150088	0	0.0
			.bss	70472	70472	0	0.0
			.data	864	864	0	0.0
			.data.rel.ro	73064	73064	0	0.0
			.dynamic	592	592	0	0.0
			.got	4160	4160	0	0.0
			.init	27	27	0	0.0
			.init_array	920	920	0	0.0
			.rodata	205714	205714	0	0.0
			.text	2036178	2036178	0	0.0
	thermostat-no-ble	arm64	(read only)	2180428	2180428	0	0.0
			(read/write)	148833	148833	0	0.0
			.bss	65409	65409	0	0.0
			.data	1048	1048	0	0.0
			.data.rel.ro	75160	75160	0	0.0
			.dynamic	560	560	0	0.0
			.got	4240	4240	0	0.0
			.init	24	24	0	0.0
			.init_array	352	352	0	0.0
			.rodata	133228	133228	0	0.0
			.text	1828608	1828608	0	0.0
	tv-app	debug	(read only)	2624313	2624313	0	0.0
			(read/write)	251000	251000	0	0.0
			.bss	168160	168160	0	0.0
			.data	3168	3168	0	0.0
			.data.rel.ro	73624	73624	0	0.0
			.dynamic	592	592	0	0.0
			.got	4544	4544	0	0.0
			.init	27	27	0	0.0
			.init_array	880	880	0	0.0
			.rodata	199485	199485	0	0.0
			.text	2250738	2250738	0	0.0
mbed	lock-app	CY8CPROTO_062_4343W+release	(read only)	6224	6224	0	0.0
			(read/write)	2351892	2351892	0	0.0
			.bss	186212	186212	0	0.0
			.data	5792	5792	0	0.0
			.text	1314492	1314492	0	0.0
p6	all-clusters-app	default	(read/write)	2495488	2495488	0	0.0
			.bss	119640	119640	0	0.0
			.data	2680	2680	0	0.0
			.text	1453752	1453752	0	0.0
	light-app	default	(read/write)	2398960	2398960	0	0.0
			.bss	113104	113104	0	0.0
			.data	2536	2536	0	0.0
			.text	1357224	1357224	0	0.0
	lock-app	default	(read/write)	2362520	2362520	0	0.0
			.bss	112848	112848	0	0.0
			.data	2496	2496	0	0.0
			.text	1320784	1320784	0	0.0
telink	lighting-app	tlsr9518adk80d	(read/write)	889826	889826	0	0.0
			bss	86968	86968	0	0.0
			noinit	37160	37160	0	0.0
			text	629098	629098	0	0.0