[Bug target/113871] psrlq is not used for PERM

[pinskia at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113871

--- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Note `PERM<{0},a,{1,2,3,4}>` should be handled too, that means defining
`vec_shl_` patterns too.