Hi,

This patch adds support for VSHR, VRSHR, VSLI, VSRI, VREV16, VREV32, and 
VREV64.

gas/ChangeLog:

2019-05-01  Andre Vieira  <andre.simoesdiasvieira@arm.com>

	* config/tc-arm.c (do_neon_sli): Accept MVE variants.
	(do_neon_sri): Likewise.
	(do_neon_rev): Likewise.
	(do_neon_rshift_round_imm): Likewise.
         (insns): Likewise.
	* testsuite/gas/arm/mve-vrev-bad.d: New test.
	* testsuite/gas/arm/mve-vrev-bad.l: New test.
	* testsuite/gas/arm/mve-vrev-bad.s: New test.
	* testsuite/gas/arm/mve-vshr-bad.d: New test.
	* testsuite/gas/arm/mve-vshr-bad.l: New test.
	* testsuite/gas/arm/mve-vshr-bad.s: New test.
	* testsuite/gas/arm/mve-vsli-bad.d: New test.
	* testsuite/gas/arm/mve-vsli-bad.l: New test.
	* testsuite/gas/arm/mve-vsli-bad.s: New test.
	* testsuite/gas/arm/mve-vsri-bad.d: New test.
	* testsuite/gas/arm/mve-vsri-bad.l: New test.
	* testsuite/gas/arm/mve-vsri-bad.s: New test.