Arm backend: Update docs to mention partial quantization

[martinlsm]

VGF has now support for partial quantization, i.e., having the model run in mixed numerical precision. Update the markdown documentation to include and explain this feature.

cc @freddan80 @per @zingo @oscarandersson8218 @digantdesai

[pytorch-bot]

🔗 Helpful Links

🧪 See artifacts and rendered test results at hud.pytorch.org/pr/pytorch/executorch/16291

• 📄 Preview Python docs built from this PR

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

❌ 1 New Failure, 1 Cancelled Job, 1 Unrelated Failure

As of commit 5b30f7b with merge base cf8496a ():

NEW FAILURE - The following job has failed:

• pull / test-openvino-linux / linux-job (gh)
  RuntimeError: Command docker exec -t 7636cb39c392b77655c565b048293ceccea86a56fd21a837ff3f6dc38bbda0a0 /exec failed with exit code 1

CANCELLED JOB - The following job was cancelled. Please retry:

• trunk / test-models-macos-coreml (ic4) / macos-job (gh)
  ##[error]The operation was canceled.

UNSTABLE - The following job is marked as unstable, possibly due to flakiness on trunk:

• pull / android / run-emulator (gh) (#16137)
  Timeout waiting for emulator to boot.

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[martinlsm]

@pytorchbot label ciflow/trunk

[martinlsm]

@pytorchbot label "partner: arm"

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[zingo]

@martinlsm does the docc "Preview" link under "Helpful Links" above look like you expect ?

[martinlsm]

@martinlsm does the docc "Preview" link under "Helpful Links" above look like you expect ?

Thanks for pointing that out. Yes, I verified it and it works like I expect it to.

[zingo]

@martinlsm does the docc "Preview" link under "Helpful Links" above look like you expect ?

Thanks for pointing that out. Yes, I verified it and it works like I expect it to.

That is kind of neat that it has been added to the CI like this :)
Thanks for checking