[clang] AArch64 Tablegen Update (PR #179692)

[Andrzej Warzyński via cfe-commits]

https://github.com/banach-space approved this pull request.

I have run one more check to verify this change:
```bash
find tools/clang/lib/Headers/ -type f -name '*.h'   | grep -Ei 'aarch64|arm'
```

I observed no changes.

> Most of the .td file was translated using the python script tools.py which I wrote in this repo - https://github.com/moodytongytong/random-python-script

Please include the script in the PR - it's fine if it's just a comment. 

Otherwise, LGTM, thanks for helping us improve in this area!

https://github.com/llvm/llvm-project/pull/179692