x86: Also handle stores for -muse-unaligned-vector-move * config/tc-i386.c (encode_with_unaligned_vector_move): Also handle stores. * testsuite/gas/i386/unaligned-vector-move.s: Add stores. * testsuite/gas/i386/unaligned-vector-move.d: Updated. * testsuite/gas/i386/x86-64-unaligned-vector-move.d: Likewise.