[llvm] [NewPM][CodeGen] add TargetPassConfig like API (PR #70906)

[via llvm-commits]

paperchalice wrote:

It might be more reasonable for me to add `MachineVerifierPass` in `CodeGenBuilder`, due to the flat design of `MachineFunctionPassManager`.
 BTW, I don't know why verifier runs before any machine pass and the banner is `After ...` in code base. It is also not friendly to module pass.
https://github.com/llvm/llvm-project/blob/4effdc47947b9260a1540ee7d8b699b077cbedb5/llvm/lib/CodeGen/MachinePassManager.cpp#L43-L49

https://github.com/llvm/llvm-project/pull/70906