[llvm] [llvm-profgen] Trim tail CR+LF for LBR record line (PR #93210)

[via llvm-commits]

https://github.com/WenleiHe approved this pull request.

LGTM, might be helpful to have a test case protecting against it since most of us don't have windows environment. 

https://github.com/llvm/llvm-project/pull/93210