ARMv8 adds LDRA and STRL instructions (and variants) in A32 and T32.

This patch adds support for them.

gas/ChangeLog:
2012-08-23  Matthew Gretton-Dann  <matthew.gretton-dann@arm.com>

	* config/tc-arm.c (do_rm_rn): New function.
	(do_strlex): Likewise.
	(do_t_strlex): Likewise.
	(insns): Add support for LDRA/STRL instructions.

gas/testsuite/ChangeLog:
2012-08-23  Matthew Gretton-Dann  <matthew.gretton-dann@arm.com>

	* gas/arm/armv8-a-bad.l: Update testcase.
	* gas/arm/armv8-a-bad.s: Likewise.
	* gas/arm/armv8-a.d: Likewise.
	* gas/arm/armv8-a.s: Likewise.

opcodes/ChangeLog:
2012-08-23  Matthew Gretton-Dann  <matthew.gretton-dann@arm.com>

	* arm-dis.c (arm_opcodes): Add LDRA/STRL instructions.
	(thumb32_opcodes): Likewise.
	(print_arm_insn): Add support for %<>T formatter.