[llvm] [CodeGen] Add New Pass Manager support for RA Basic and PBQP (PR #218975)

[Nikhil Kotikalapudi via llvm-commits]

nkotikal wrote:

@arsenm @perlfu @cofibrant @wangpc-pp for review? 
This PR may still require a bit of work depending on what the best practices are for something like this. Don't know too many others in this space so no worries if this is outside your review bandwidth. No commit access just yet so can't directly request.

https://github.com/llvm/llvm-project/pull/218975