boards: mikroe: ra4m1_clicker: added mikrobus header #150274

Job	Run time
twister-build-prep / prep_pr	2m 44s
twister-build-prep / prep_push	0s
twister-build (1)	42m 30s
Publish Unit Tests Results	10s
Check Twister Status / all jobs passed	1s
	45m 25s

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