Support CoreML export on Linux

[jathu]

Summary

• Fixes Support CoreML export on Linux #9800
• Adds support for CoreML exports on Linux
• Test CoreML .pte export on Linux in CI

Test plan

$ ./install_executorch.sh
$ GITHUB_WORKSPACE=$(dirname $(pwd)) REPOSITORY=$(basename $(pwd)) python .ci/scripts/wheel/test_linux.py

[pytorch-bot]

🔗 Helpful Links

🧪 See artifacts and rendered test results at hud.pytorch.org/pr/pytorch/executorch/11172

• 📄 Preview Python docs built from this PR

Note: Links to docs will display an error until the docs builds have been completed.

✅ You can merge normally! (3 Unrelated Failures)

As of commit 6551fa2 with merge base d8ac866 ():

FLAKY - The following job failed but was likely due to flakiness present on trunk:

• pull / unittest / linux / linux-job (gh) (similar failure)
  examples/models/llama/tests/test_export_llama_lib.py::ExportLlamaLibTest::test_has_expected_ops_and_op_counts

BROKEN TRUNK - The following jobs failed but was present on the merge base:

👉 Rebase onto the `viable/strict` branch to avoid these failures

• pull / unittest-editable / linux / linux-job (gh) (trunk failure)
  examples/models/llama/tests/test_export_llama_lib.py::ExportLlamaLibTest::test_has_expected_ops_and_op_counts
• trunk / unittest-release / linux / linux-job (gh) (trunk failure)
  examples/models/llama/tests/test_export_llama_lib.py::ExportLlamaLibTest::test_has_expected_ops_and_op_counts

This comment was automatically generated by Dr. CI and updates every 15 minutes.

[metascroy]

@jathu did you test the pybindings?

[jathu]

@metascroy we build the wheel and run an export test in the CI (see Build macOS/Linux Wheels)

[cymbalrush]

Looks good, thank you!