[clang-tools-extra] [llvm] [clang] [flang] [flang] Pass to add frame pointer attribute (PR #74598)

[Radu Salavat via cfe-commits]

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Radu2k wrote:

This is needed because depending on the target, if the frame pointer is not specified, then the best option will be automatically added, therefore a 

```
'func.func' Pipeline
  FunctionAttr
```
will appear or not, depending of the target, at the end of the file. 

Therefore it is mandatory to add omitting frame pointer.

https://github.com/llvm/llvm-project/pull/74598