[clang] [AIX] recognize vsr in inline asm for AIX (PR #68476)

[Hubert Tong via cfe-commits]

hubert-reinterpretcast wrote:

The code formatting check failure seems to be a infrastructure problem: https://discourse.llvm.org/t/clang-format-github-action-cannot-find-merge-base/73894

https://github.com/llvm/llvm-project/pull/68476