[llvm] [NewPM][CodeGen] Add NPM support to llc (PR #69879)

[via llvm-commits]

paperchalice wrote:

Some questions:
- Should machine function pass inherits a dedicate mixin class like `MachinePassInfoMixin` other than `PassInfoMixin`?
- It is counterintuitive that machine function pass provides analysis key, should it use a dedicate class?

https://github.com/llvm/llvm-project/pull/69879