gas/

	gas/
	* config/tc-arm.c (do_t_nop): Correct check for Thumb-2 NOP.

	gas/testsuite/
	* gas/arm/thumb-nop.d, gas/arm/thumb-nop.s: New test.
	* gas/arm/relax_branch_align.d: Expect a default NOP instruction.
	* gas/arm/vfp1_t2.d, gas/arm/vfp1xD_t2.d: Specify a CPU with
	Thumb-2.

	ld/testsuite/
	* ld-arm/arm-elf.exp (armelftests): Assemble Cortex-A8 tests with
	-mcpu=cortex-a8.