Enable more test cases:
ins (vec[], vec[])
mla, mls, mul (vec, vec, vec[])
various more movi/mvni cases
not 16b/8b



git-svn-id: svn://svn.valgrind.org/valgrind/trunk@14083 a5019735-40e9-0310-863c-91ae7b9d1cf9