NXP backend: Add dim order support to executorch_pipeline.py, add del…

[roman-janik-nxp]

…egate_to_npu switch

Summary

Adds support for dim-order feature to example inputs in the pipeline. Adds delegate_to_npu switch.

Test plan

All NXP backend tests using executorch_pipeline.py.

cc @robert-kalmar @JakeStevens @digantdesai

[pytorch-bot]

🔗 Helpful Links

🧪 See artifacts and rendered test results at hud.pytorch.org/pr/pytorch/executorch/17379

• 📄 Preview Python docs built from this PR

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❌ 1 Awaiting Approval, 3 New Failures, 2 Unrelated Failures

As of commit 143e923 with merge base 2a12f1f ():

AWAITING APPROVAL - The following workflow needs approval before CI can run:

• periodic (gh)

NEW FAILURES - The following jobs have failed:

• Lint / lintrunner / linux-job (gh)
  >>> Lint for backends/nxp/tests/executorch_pipeline.py:
• pull / test-samsung-models-linux / linux-job (gh)
  RuntimeError: Command docker exec -t 6f1d06fe395c2736ad9f09d236f9876eb58012fdad4c37384b0d9c6e6599f1e9 /exec failed with exit code 1
• pull / test-samsung-quantmodels-linux / linux-job (gh)
  RuntimeError: Command docker exec -t 957f7e4346ef6854d23bf7f7adc25ca50b4907a8dcad0394d0453cb50a04b41b /exec failed with exit code 1

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

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

• pull / android / run-emulator (gh) (trunk failure)
  The process '/opt/android/sdk/platform-tools/adb' failed with exit code 224
• pull / test-llama-runner-qnn-linux (fp32, qnn_16a16w, qnn) / linux-job (gh) (trunk failure)

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