Add CoreML support for torchao quantize_

[metascroy]

This is CoreML support for blockwise/channelwise quantization of linear/embedding layers using torchao APIs.

This PR is based on top of #12648, and will be rebased once that lands to show the changes isolated to quantization.

[pytorch-bot]

🔗 Helpful Links

🧪 See artifacts and rendered test results at hud.pytorch.org/pr/pytorch/executorch/12664

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❌ 1 New Failure, 7 Pending

As of commit 5407082 with merge base 6aa864e ():

NEW FAILURE - The following job has failed:

• pull / test-eval_llama-mmlu-linux / linux-job (gh)
  RuntimeError: Command docker exec -t c576ca27dee265b93f61983cc36e683a59cb8e7a895f18b5d331194a5bfcc069 /exec failed with exit code 1

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[github-actions]

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[YifanShenSZ]

Nice!