[ARM] Add -march=armv7ve

[ARM] Add -march=armv7ve

gcc/
2014-01-29  Renlin Li  <Renlin.Li@arm.com>

	* config/arm/arm-arches.def (ARM_ARCH): Add armv7ve arch.
	* config/arm/arm.c (FL_FOR_ARCH7VE): New.
	(arm_file_start): Generate correct asm header for armv7ve.
	* config/arm/bpabi.h: Add multilib support for armv7ve.
	* config/arm/driver-arm.c: Change the architectures of cortex-a7
	and cortex-a15 to armv7ve.
	* config/arm/t-aprofile: Add multilib support for armv7ve.
	* doc/invoke.texi: Document -march=armv7ve.

gcc/testsuite/
2014-01-29  Renlin Li  <Renlin.Li@arm.com>

	* gcc.target/arm/ftest-armv7ve-arm.c: New.
	* gcc.target/arm/ftest-armv7ve-thumb.c: New.
	* lib/target-supports.exp: New armfunc, armflag and armdef for armv7ve.

From-SVN: r207237