[llvm] [NFC][LLVM] Add RealtimeSanitizer LLVM code owners (PR #101231)

[Vitaly Buka via llvm-commits]

vitalybuka wrote:

> CC Reviewers @vitalybuka @MaskRay @davidtrevelyan
> 
> Because we don't have commiter access, not sure if this should just be closed! I defer to the reviewers if adding this in is appropriate or not.
[> 
> Thanks as always.

I don't know if this process is still relevant https://llvm.org/docs/DeveloperPolicy.html#obtaining-commit-access

https://github.com/llvm/llvm-project/pull/101231