[BE][MPS] Add MPS to clang format (#96562)
I'm getting tired of asking to add space after if and all that jazz, so let's linter do that.
Add section for Objective-C language, where column with is extended to 120 characters and `AlignAfterOpenBracket` is set to `Align`
All `.mm` changes in this PR are made by running linter as follows:
```
lintrunner --take CLANGFORMAT --all-files --apply-patches
```
Pull Request resolved: https://github.com/pytorch/pytorch/pull/96562
Approved by: https://github.com/seemethere, https://github.com/janeyx99, https://github.com/ZainRizvi, https://github.com/izaitsevfb, https://github.com/PaliC, https://github.com/albanD
