[clang] [llvm] [ubsan] Plumb through -fsanitize-skip-hot-cutoff to LowerAllowCheckPass (PR #124211)

[Vitaly Buka via llvm-commits]

https://github.com/vitalybuka requested changes to this pull request.

Lets move clang part into a new PR?

https://github.com/llvm/llvm-project/pull/124211