[llvm] [Xtensa] Implement Code Density Option. (PR #119639)

[Andrei Safronov via llvm-commits]

andreisfr wrote:

> Unrelated but can you open a PR to add the xtensa paths to .github/new-prs-labeler.yml

Thank you for advice. I created PR https://github.com/llvm/llvm-project/pull/120133

https://github.com/llvm/llvm-project/pull/119639