[clang] [clang] Alias cc modifier to c (PR #127719)

[Aaron Ballman via cfe-commits]

https://github.com/AaronBallman commented:

Thanks for the fix! The changes should come with a release note in `clang/docs/ReleaseNotes.rst`

I'm not super familiar with GCC Asm Statements, but the changes look correct to me otherwise.

https://github.com/llvm/llvm-project/pull/127719