Update XLA pin (#102446)
Updating the pin to the same hash as https://github.com/pytorch/pytorch/pull/100922
On the XLA side, build have switch from CMake to bazel, which requires number of changes on PyTorch side:
- Copy installed headers back to the `torch/` folder before starting the build
- Install `torch/csrc/lazy/python/python_utils.h`
- Define `LD_LIBRARY_PATH`
TODO:
- Enable bazel caching
- Pass CXX11_ABI flag to `//test/cpp:all` to reuse build artifacts from `//:_XLAC.so`
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### <samp>🤖 Generated by Copilot at cd4768b</samp>
> _To fix the XLA tests that were failing_
> _We updated the submodule and scaling_
> _We added `python_util.h`_
> _And copied `torch` as well_
> _And set `LD_LIBRARY_PATH` for linking_
Pull Request resolved: https://github.com/pytorch/pytorch/pull/102446
Approved by: https://github.com/huydhn
