8016586: PPC64 (part 3): basic changes for PPC64 Summary: added #includes needed for ppc64 port. Renamed _MODEL_ppc to _MODEL_ppc_32 and renamed corresponding old _ppc files to _ppc_32. Reviewed-by: dholmes, kvn

^build/
^dist/
nbproject/private/
^webrev
^.hgtip
^.bridge2
.DS_Store