[llama-mm] Onboard torchtune vision encoder to ExecuTorch/AOTI

[larryliu0820]

Stack from ghstack (oldest at bottom):

• -> [llama-mm] Onboard torchtune vision encoder to ExecuTorch/AOTI #6807
• [llama-mm] Add export friendly TiledTokenPositionalEmbedding #6806

Summary: As titled. This PR adds llama3_2_vision_encoder to
examples/models/llama3_2_vision/vision_encoder and add CI jobs.

Test Plan: Rely on newly added CI jobs

Reviewers:

Subscribers:

Tasks:

Tags:

[pytorch-bot]

🔗 Helpful Links

🧪 See artifacts and rendered test results at hud.pytorch.org/pr/pytorch/executorch/6807

• 📄 Preview Python docs built from this PR

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

❌ 3 New Failures

As of commit 92fc8e7 with merge base f943856 ():

NEW FAILURES - The following jobs have failed:

• Propose to merge ghstack orig PRs to main / Try to create a PR with ghstack /orig branch (gh)
  github.GithubException.GithubException: 422 {"message": "Validation Failed", "errors": [{"resource": "PullRequest", "field": "base", "code": "invalid"}], "documentation_url": "https://docs.github.com/rest/pulls/pulls#create-a-pull-request", "status": "422"}
• pull / unittest / linux / linux-job (gh)
  RuntimeError: Command docker exec -t e8965aca97724704888236183e7427f36b155250c442a6356fa967a7f76d9984 /exec failed with exit code 5
• pull / unittest / macos / macos-job (gh)
  RuntimeError: Command bash /Users/ec2-user/runner/_work/_temp/exec_script failed with exit code 5

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[larryliu0820]

@pytorchbot cherry-pick main

[pytorch-bot]

❌ 🤖 pytorchbot command failed:

@pytorchbot cherry-pick: error: the following arguments are required: --onto, -c/--classification

usage: @pytorchbot cherry-pick --onto ONTO [--fixes FIXES] -c
                               {regression,critical,fixnewfeature,docs,release}

Try @pytorchbot --help for more info.

[larryliu0820]

@pytorchbot cherry-pick --onto main

[pytorch-bot]

❌ 🤖 pytorchbot command failed:

@pytorchbot cherry-pick: error: the following arguments are required: -c/--classification

usage: @pytorchbot cherry-pick --onto ONTO [--fixes FIXES] -c
                               {regression,critical,fixnewfeature,docs,release}

Try @pytorchbot --help for more info.

[larryliu0820]

@pytorchbot cherry-pick --onto main -c critical

[pytorchbot]

Cherry picking #6807

The cherry pick PR is at #6831 and it is recommended to link a critical cherry pick PR with an issue.

Details for Dev Infra team

Raised by workflow job