[llvm] [TLI] Add basic support for scalbnxx (PR #112936)

[Subhadip Roy Chowdhury via llvm-commits]

voidptrnull wrote:

I noticed that in `llvm/test/tools/llvm-tli-checker/ps4-tli-check.yaml` (line 28), the test case hasn’t been updated to reflect recent changes. It still uses `258` instead of the new value `264`. Updating it should resolve the failing test.

https://github.com/llvm/llvm-project/pull/112936