amend angie build definitions to fix make dist

"make dist" was broken because GNU Make was using a built-in rule
to try to build angie from angie.c . This is a limitation in Automake
when you add a whole subdir with the same name to EXTRA_DIST.
The Automake doc actually discourages adding whole subdirs.

Change-Id: I85ea4ecbd529b060c70f83bcfda7522e1730480d
Signed-off-by: R. Diez <rdiezmail-openocd@yahoo.de>
Reviewed-on: https://review.openocd.org/c/openocd/+/8600
Tested-by: jenkins
Reviewed-by: Antonio Borneo <borneo.antonio@gmail.com>

src/jtag/drivers/Makefile.am

@@ -10,10 +10,8 @@ noinst_LTLIBRARIES += %D%/libocdjtagdrivers.la
 %C%_libocdjtagdrivers_la_CPPFLAGS = $(AM_CPPFLAGS)
 
 ULINK_FIRMWARE = %D%/OpenULINK
-ANGIE_FILES = %D%/angie
 
 EXTRA_DIST += $(ULINK_FIRMWARE) \
-	$(ANGIE_FILES) \
 	%D%/usb_blaster/README.CheapClone \
 	%D%/Makefile.rlink \
 	%D%/rlink_call.m4 \
@@ -125,12 +123,17 @@ ulinkdir = $(pkgdatadir)/OpenULINK
 dist_ulink_DATA = $(ULINK_FIRMWARE)/ulink_firmware.hex
 %C%_libocdjtagdrivers_la_LIBADD += -lm
 endif
+
 if ANGIE
-DRIVERFILES += %D%/angie.c
-angiedir = $(pkgdatadir)/angie
-dist_angie_DATA = $(ANGIE_FILES)/angie_firmware.bin $(ANGIE_FILES)/angie_bitstream.bit
-%C%_libocdjtagdrivers_la_LIBADD += -lm
+  angiedir = $(pkgdatadir)/angie  # This is only for dist_angie_DATA.
+  DRIVERFILES     += %D%/angie.c
+  DRIVERFILES     += %D%/angie/include/msgtypes.h
+  EXTRA_DIST      += %D%/angie/README
+  dist_angie_DATA  = %D%/angie/angie_firmware.bin
+  dist_angie_DATA += %D%/angie/angie_bitstream.bit
+  %C%_libocdjtagdrivers_la_LIBADD += -lm
 endif
+
 if VSLLINK
 DRIVERFILES += %D%/versaloon/usbtoxxx/usbtogpio.c
 DRIVERFILES += %D%/versaloon/usbtoxxx/usbtojtagraw.c