[llvm] [ctx_prof] Insert the ctx prof flattener after the module inliner (PR #107499)

[Mircea Trofin via llvm-commits]

mtrofin wrote:

### Merge activity

* **Sep 9, 9:15 PM EDT**: @mtrofin started a stack merge that includes this pull request via [Graphite](https://app.graphite.dev/github/pr/llvm/llvm-project/107499).


https://github.com/llvm/llvm-project/pull/107499