Create Linaro branch from gcc-6-branch at r236016.

Create Linaro branch from gcc-6-branch at r236016.

	* .gitreview: New file.

	gcc/
	* LINARO-VERSION: New file.
	* configure.ac: Add Linaro version string.
	* configure: Regenerate.

	gcc/
	Cherry-pick from linaro/gcc-4_9-branch r217544.
	2014-11-14  Yvan Roux  <yvan.roux@linaro.org>

	Add Linaro release macros (Linaro only patch.)

	* Makefile.in (LINAROVER, LINAROVER_C, LINAROVER_S): Define.
	(CFLAGS-cppbuiltin.o): Add LINAROVER macro definition.
	(cppbuiltin.o): Depend on $(LINAROVER).
	* cppbuiltin.c (parse_linarover): New.
	(define_GNUC__): Define __LINARO_RELEASE__ and __LINARO_SPIN__ macros.

Change-Id: Ie9154564023407b038632023041712064b66b379