Integrate LLVM at llvm/llvm-project@161755770a44
Integrate LLVM at llvm/llvm-project@161755770a44

Updates LLVM usage to match
[161755770a44](https://github.com/llvm/llvm-project/commit/161755770a44)

PiperOrigin-RevId: 409111833

tensorflow/runtime,tensorflow/runtime,tensorflow/runtime,tensorflow/runtime