Update to hg 3220:2685dfa9de14
Merge remote-tracking branch 'remotes/origin/official' into cctools-llvm

Conflicts:
	config/binutils.in
	config/cc/gcc.in
	config/companion_libs/mpfr.in
	config/config.mk
	config/global/build-behave.in
	config/libc/eglibc.in
	config/libc/glibc.in
	config/libc/uClibc.in
	samples/arm-cortex_a15-linux-gnueabi/crosstool.config
	samples/mipsel-sde-elf/crosstool.config
	scripts/build/cc/gcc.sh
	scripts/build/internals.sh
	scripts/crosstool-NG.sh.in
	steps.mk