[llvm] [CodeGen] Compute call frame sizes instead of storing them in MachineBBs (PR #106964)

[Fabian Ritter via llvm-commits]

ritter-x2a wrote:

Ping. I pulled in updates from main and updated the description and title of this PR, since it did have a bit of a shift in subject. Let me know if you'd prefer me to open a new PR for computing instead of storing call frame sizes instead.

https://github.com/llvm/llvm-project/pull/106964