Enable tests for: sq{r}dmulh (scalar vs elem, vector vs elem),
sqshl, uqshl, sqrshl, uqrshl (reg) (vector and scalar).


git-svn-id: svn://svn.valgrind.org/valgrind/trunk@14231 a5019735-40e9-0310-863c-91ae7b9d1cf9