implemented ability to enable -D_FF_RV_EXIST_ in TIF library It is not clear if this quirk is intentional or not, but TI's production version of tif_na7_db_{fl,ir}.lib was built without -D_FF_RV_EXIST_, and as a result, the code that is present in the source for the TRACEMASK_IN_FFS feature was not compiled in, making the feature unavailable. The present change makes it possible to re-enable this code (when TIF libraries are being rebuilt from source rather than used as blobs) by setting TRACEMASK_IN_FFS=1 on the configure line. The new code is NOT enabled by default: it is not a change which we can justify inflicting on our production firmwares.

ram:	ramimage.srec

link_ram.cmd:	${RAM_LINK_SCRIPT_SRC} Makefile lcfgen
	perl ../scripts/ti/make_cmd.pl lcfgen $@ 0 ${RAM_LINK_SCRIPT_SRC} \
		${SPECIAL_LINK_LIBS}

ramimage.out:	${LIBS} build_date.obj str2ind.obj link_ram.cmd
	../toolwrap/vlnk470 -farcall -x -o $@ -m ramimage.map $^

ramimage.m0:	ramimage.out
	../toolwrap/hex470 -m -memwidth 16 -romwidth 16 $<

ramimage.srec:	ramimage.m0
	../helpers/srec4ram $< $@