[llvm] [GlobalISel] Add `or_and_xor_to_or` pattern from SelectionDAG (PR #201108)

[Jay Foad via llvm-commits]

jayfoad wrote:

How about generalizing this?
```
(X&~Y)|Y --> X|Y
(X&Y)|~Y --> X|~Y
(X|~Y)&Y --> X&Y
(X|Y)&~Y --> X&~Y
```

https://github.com/llvm/llvm-project/pull/201108