[llvm] [NFC] Formatting PassRegistry.def (PR #144139)

[S. VenkataKeerthy via llvm-commits]

svkeerthy wrote:

### Merge activity

* **Jul 1, 6:01 PM UTC**: A user started a stack merge that includes this pull request via [Graphite](https://app.graphite.dev/github/pr/llvm/llvm-project/144139).


https://github.com/llvm/llvm-project/pull/144139