Replace Xmmword with Qword on cvttps2pi

gas/testsuite/

	PR gas/13572
	* gas/i386/simd.s: Add a test for cvttps2pi.
	* gas/i386/simd-intel.d: Updated.
	* gas/i386/simd.d: Likewise.

opcodes/

	PR gas/13572
	* i386-opc.tbl: Replace Xmmword with Qword on cvttps2pi.
	* i386-tbl.h: Regenerated.