Remove VL variants for 4FMAPS and 4VNNIW insns.

AVX512_4FMAPS and AVX512_4VNNIW insns are marked as having AVX512VL
variants.  That is wrong as SDM doesn't define such instructions. The
patch removes these VL variants.

gas/
	* testsuite/gas/i386/avx512_4fmaps-warn.l: Change xmm to zmm.
	* testsuite/gas/i386/avx512_4fmaps-warn.s: Likewise.
	* testsuite/gas/i386/avx512_4fmaps_vl-intel.d: Delete.
	* testsuite/gas/i386/avx512_4fmaps_vl-warn.l: Likewise.
	* testsuite/gas/i386/avx512_4fmaps_vl-warn.s: Likewise.
	* testsuite/gas/i386/avx512_4fmaps_vl.d: Likewise.
	* testsuite/gas/i386/avx512_4fmaps_vl.s: Likewise.
	* testsuite/gas/i386/avx512_4vnniw_vl-intel.d: Likewise.
	* testsuite/gas/i386/avx512_4vnniw_vl.d: Likewise.
	* testsuite/gas/i386/avx512_4vnniw_vl.s: Likewise.
	* testsuite/gas/i386/i386.exp: Delete _vl tests for 4fmaps an
	4vnniw tests.
	* testsuite/gas/i386/x86-64-avx512_4fmaps_vl-intel.d: Delete.
	* testsuite/gas/i386/x86-64-avx512_4fmaps_vl-warn.l: Likewise.
	* testsuite/gas/i386/x86-64-avx512_4fmaps_vl-warn.s: Likewise.
	* testsuite/gas/i386/x86-64-avx512_4fmaps_vl.d: Likewise.
	* testsuite/gas/i386/x86-64-avx512_4fmaps_vl.s: Likewise.
	* testsuite/gas/i386/x86-64-avx512_4vnniw_vl-intel.d: Likewise.
	* testsuite/gas/i386/x86-64-avx512_4vnniw_vl.d: Likewise.
	* testsuite/gas/i386/x86-64-avx512_4vnniw_vl.s: Likewise.

opcodes/
	* i386-opc.tbl: Remove VL variants for 4FMAPS and 4VNNIW
	insns.
	* i386-tbl.h: Regenerate.