[X86] Merge some of the autoupgrade handling for masked intrinsics that just...

[X86] Merge some of the autoupgrade handling for masked intrinsics that just need to upgrade to an unmasked version plus a select. NFCI

These are were previously grouped in small groups of similarish intrinsics. But all the intrinsics have the same number of arguments and the same order. So we can move them all into a larger group for handling.

llvm-svn: 329549