all: power64 is now ppc64

include/link.h

src/cmd/9a/doc.go

src/cmd/9a/lex.c

src/cmd/9g/doc.go

src/cmd/9g/galign.c

src/cmd/9g/ggen.c

src/cmd/9g/peep.c

src/cmd/9l/asm.c

src/cmd/9l/doc.go

src/cmd/9l/obj.c

src/cmd/cgo/main.go

src/cmd/dist/build.c

src/cmd/dist/unix.c

src/cmd/internal/objfile/disasm.go

src/cmd/internal/objfile/elf.go

src/cmd/internal/objfile/macho.go

src/cmd/ld/ldelf.c

src/cmd/objdump/objdump_test.go

src/debug/elf/elf.go

src/go/build/build.go