[llvm] [AArch64] Initial sched model for Neoverse V3, V3AE (PR #163932)

[Tom Eccles via llvm-commits]

tblah wrote:

There is a failing test in the CI job:
```
2025-10-17T10:24:37.2283575Z Failed Tests (1):
2025-10-17T10:24:37.2283790Z   LLVM :: Other/pass-pipeline-parsing.ll
```

But I suspect that might be unrelated to your changes

https://github.com/llvm/llvm-project/pull/163932