aout.h, [...]: Replace "GNU compiler", "GNU CC" with "GCC".

aout.h, [...]: Replace "GNU compiler", "GNU CC" with "GCC".

	* config/sparc/aout.h, config/sparc/biarch64.h, config/sparc/elf.h,
	config/sparc/freebsd.h, config/sparc/linux.h, config/sparc/linux64.h,
	config/sparc/lite.h, config/sparc/litecoff.h, config/sparc/liteelf.h,
	config/sparc/netbsd-elf.h, config/sparc/openbsd.h,
	config/sparc/rtemself.h, config/sparc/sol2-64.h,
	config/sparc/sol2-bi.h, config/sparc/sol2-gas-bi.h,
	config/sparc/sol2-gld-bi.h, config/sparc/sol2-gld.h,
	config/sparc/sol2.h, config/sparc/sp64-aout.h,
	config/sparc/sp64-elf.h, config/sparc/sp86x-elf.h,
	config/sparc/sparc-protos.h, config/sparc/sysv4-only.h: Replace
	"GNU compiler", "GNU CC" with "GCC".

From-SVN: r68056