keypad boot init overhaul: handle initially held-down keys This change fixes two previous behavioural defects: 1) On Compal phones, the PWR key had to be released before the boot sequence would proceed at all - it was stuck in an endless IRQ loop at the point of Nucleus enabling interrupts, before anything else. 2) On both Compal and sane platforms including Luna, if some regular non-PWR key was held down at boot time, the boot sequence would proceed and complete normally, but all non-PWR keypad buttons would be dead for the remainder of that boot cycle. The fix is a generic solution - no Compal-specific hack ended up being needed for the special case of their idiotic PWON-to-ROW4 hw wiring.

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 $< $@