[llvm] [llvm][NFC]Support callee saved register info in save/restore points (PR #119358)

[Elizaveta Noskova via llvm-commits]

enoskova-sc wrote:

@preames, do you still have any doubts, concerning shrink-wrap improvement, proposed by me?
If do, may be it is worth discussing. 
If not, please, take a look at my MR, when you have time.

https://github.com/llvm/llvm-project/pull/119358