* config/i386/att.h, config/i386/beos-elf.h, config/i386/biarch64.h,
	config/i386/bsd.h, config/i386/crtdll.h, config/i386/cygming.h,
	config/i386/cygwin.h, config/i386/cygwin1.c, config/i386/cygwin2.c,
	config/i386/darwin.h, config/i386/djgpp.h, config/i386/emmintrin.h,
	config/i386/freebsd-aout.h, config/i386/freebsd.h,
	config/i386/freebsd64.h, config/i386/gas.h: GNU CC -> GCC.

From-SVN: r71810