Most of the changes were to fix broken macros in platfrom_tlaser.s
palcode/Makefile:
Completly new makefile to build palcode
palcode/ev5_alpha_defs.h:
fixed a broken define
palcode/ev5_impure.h:
macro fixes
palcode/platform_srcmax.s:
manual macro expansion of broken macros... this file isn't needed to
build tlaser palcode
palcode/platform_tlaser.s:
lots of fixups to make the code assemble
