[llvm] [X86] Enable masked interleaved access (PR #224907)

[Le Gia Bao via llvm-commits]

L3GiaBao wrote:

The `undef` comes from somewhere else, which I can take a look into. But not sure if thats another PR or to be bundled with this one. Thoughts?

https://github.com/llvm/llvm-project/pull/224907