Hi,

This patch adds support for MVE instructions VRINTN, VRINTX, VRINTA, 
VRINTZ, VRINTM, and VRINTP.

gas/ChangeLog:

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

	* config/tc-arm.c (do_vrint_1): Accept MVE variants.
         (insns): Change entries to accept MVE variants.
	* testsuite/gas/arm/mve-vrint-bad.d: New test.
	* testsuite/gas/arm/mve-vrint-bad.l: New test.
	* testsuite/gas/arm/mve-vrint-bad.s: New test.