[llvm] [LV] Add vplan folds for (X - (X & Y)) -> (X & ~Y) (PR #226466)

[David Sherwood via llvm-commits]

david-arm wrote:

I have a PR to regenerate some CHECK lines to reduce some noise in this diff: https://github.com/llvm/llvm-project/pull/226468

https://github.com/llvm/llvm-project/pull/226466