Register get_cpu_capability for jit (#100723)
Description:
Context: In torchvision we ensure that functional ops are torchscriptable. Recently exposed `torch.backends.cpu.get_cpu_capability()` in https://github.com/pytorch/pytorch/pull/100164 is failing in torchvision CI
```
RuntimeError:
Python builtin <built-in function _get_cpu_capability> is currently not supported in Torchscript:
File "/usr/local/lib/python3.10/dist-packages/torch/backends/cpu/__init__.py", line 17
- "AVX512"
"""
return torch._C._get_cpu_capability()
~~~~~~~~~~~~~~~~~~~~~~~~~~~~ <--- HERE
```
Ref: https://github.com/pytorch/vision/pull/7557
In this PR, `torch._C._get_cpu_capability()` is explicitly registered for JIT and tested.
Pull Request resolved: https://github.com/pytorch/pytorch/pull/100723
Approved by: https://github.com/albanD
