Mps docs

[metascroy]

Partially maps the MPS docs onto the new doc structure.

Builds on top of #15033, so ignore the CoreML changes.

[pytorch-bot]

🔗 Helpful Links

🧪 See artifacts and rendered test results at hud.pytorch.org/pr/pytorch/executorch/15034

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❗ 1 Active SEVs

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❌ 5 New Failures, 3 Cancelled Jobs, 1 Unrelated Failure

As of commit 54f7312 with merge base c4bd450 ():

NEW FAILURES - The following jobs have failed:

• pull / test-qnn-wheel-packages-linux (3.10) / linux-job (gh)
  RuntimeError: Command docker exec -t 86c54de3ce6de2751199d2240f34f9f2b75f46da8f479d8b263a38695e81f778 /exec failed with exit code 1
• pull / test-qnn-wheel-packages-linux (3.11) / linux-job (gh)
  RuntimeError: Command docker exec -t d2679d8cb50ec130090faebd2658333538087bf446d9c170131c2697b197b53e /exec failed with exit code 1
• pull / test-qnn-wheel-packages-linux (3.12) / linux-job (gh)
  RuntimeError: Command docker exec -t 93afc7991d0e2652f869d49af87c829141c4c66a6c3d351aa45694038a1cc81a /exec failed with exit code 1
• pull / test-samsung-models-linux / linux-job (gh)
  RuntimeError: Command docker exec -t 5518780096b1069d044ef6b85a723b141d9e8ad04109ce0331b78fee8154ded2 /exec failed with exit code 1
• Test CUDA Builds / test-voxtral-cuda-e2e / linux-job (gh)
  RuntimeError: Command docker exec -t f808408abe7c5a4e8ec99228ea403f2c624b36047e51c0468356245a14c90c43 /exec failed with exit code 2

CANCELLED JOBS - The following jobs were cancelled. Please retry:

• pull / unittest / macos / macos-job (gh)
• pull / unittest-buck / macos / macos-job (gh)
• pull / unittest-editable / macos / macos-job (gh)

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

• pull / unittest-arm-backend-with-no-fvp (test_pytest_models) / linux-job (gh) (detected as infra flaky with no log or failing log classifier)

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[github-actions]

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[mergennachin]

What about all the references?

https://github.com/search?q=repo%3Apytorch%2Fexecutorch%20backends-coreml&type=code