[llvm-branch-commits] [NFC][Driver][CFI] Rename to clarify purpose of CFI runtime (PR #135885)

[Vitaly Buka via llvm-branch-commits]

https://github.com/vitalybuka created https://github.com/llvm/llvm-project/pull/135885

CFI runtime (diagnostics, or not) is only needed
for cross-dso support.