x86: Set Vex=1 on VEX.128 only vmovd and vmovq

x86: Set Vex=1 on VEX.128 only vmovd and vmovq

AVX "VMOVD xmm1, r32/m32", "VMOVD r32/m32, xmm2", "VMOVQ xmm1, r64/m64"
and "VMOVD r64/m64, xmm2" can only be encoded with VEX.128.  Set Vex=1
on VEX.128 only vmovd and vmovq.

gas/

	PR gas/23665
	* testsuite/gas/i386/avx-scalar.s: Remove vmovq and vmovd tests.
	* testsuite/gas/i386/x86-64-avx-scalar.s: Likewise.
	* testsuite/gas/i386/avx-scalar-intel.d: Updated.
	* testsuite/gas/i386/avx-scalar.d: Likewise.
	* testsuite/gas/i386/x86-64-avx-scalar-intel.d: Likewise.
	* testsuite/gas/i386/x86-64-avx-scalar.d: Likewise.
	* testsuite/gas/i386/i386.exp: Run avx-scalar2 and
	x86-64-avx-scalar2.
	* testsuite/gas/i386/avx-scalar-2.d: New file.
	* testsuite/gas/i386/avx-scalar-2.s: Likewise.
	* testsuite/gas/i386/x86-64-avx-scalar-2.d: Likewise.
	* testsuite/gas/i386/x86-64-avx-scalar-2.s: Likewise.

opcodes/

	PR gas/23665
	* i386-dis.c (vex_len_table): Update VEX_LEN_0F6E_P_2 and
	VEX_LEN_0F7E_P_2 entries.
	* i386-opc.tbl: Set Vex=1 on VEX.128 only vmovd and vmovq.
	* i386-tbl.h: Regenerated.