[PATCH][GAS][AArch64] Fix MSR/MRS Encoding and Decoding

[Nick Clifton]

Hi Tamar,

> Ok for master?

Approved - please apply.  (If you wish to backport the patch to the 2.30 branch, that is OK too).

> opcodes/
> 2018-03-08  Tamar Christina  <tamar.christina@arm.com>
> 
> 	* aarch64-dis-2.c: Regenerate.
> 	* aarch64-tbl.h (aarch64_opcode_table): Fix MSR and MRS encoding.
> 
> gas/
> 2018-03-08  Tamar Christina  <tamar.christina@arm.com>
> 
> 	* testsuite/gas/aarch64/sysreg-1.d: Update encodings.

Cheers
  Nick