[PATCH 15/57][Arm][GAS] Add support for MVE instructions: vcls, vclz and vfmas

[PATCH 15/57][Arm][GAS] Add support for MVE instructions: vcls, vclz and vfmas

gas/ChangeLog:
2019-05-16  Andre Vieira  <andre.simoesdiasvieira@arm.com>

	* config/tc-arm.c (do_mve_vfmas): New encoding function.
	(do_neon_cls): Change to support MVE variants.
	(do_neon_clz): Change to support MVE variants.
	(insns): Change to support MVE variants and add new.
	* testsuite/gas/arm/mve-vcls-bad.d: New test.
	* testsuite/gas/arm/mve-vcls-bad.l: New test.
	* testsuite/gas/arm/mve-vcls-bad.s: New test.
	* testsuite/gas/arm/mve-vclz-bad.d: New test.
	* testsuite/gas/arm/mve-vclz-bad.l: New test.
	* testsuite/gas/arm/mve-vclz-bad.s: New test.
	* testsuite/gas/arm/mve-vfmas-bad.d: New test.
	* testsuite/gas/arm/mve-vfmas-bad.l: New test.
	* testsuite/gas/arm/mve-vfmas-bad.s: New test.