Arm backend: Add support for clamp.Tensor

[YufengShi-dudu]

Decompose aten.clamp.Tensor to a chain of minimum/maximum operations, since TOSA clamp only supports scalar min/max bounds.

This change:

• Rename DecomposeInt32ClampPass to DecomposeTOSAUnsupportedClampPass
• Extend the pass to handle aten.clamp.Tensor variants already annotated by ArmQuantizer
• Mark aten.clamp.Tensor as supported in the TOSA operator support lists
• Fix clamp decomposition to apply max with the lower bound, then min with the upper bound (y_i = min(max(x_i, min_i), max_i)), matching torch.clamp semantics even when min > max
• Align the memory layout of lifted tensor constants in process_inputs_to_lifted_tensor_constants with the TOSA memory format

Change-Id: Iee52062599c1ef58421bc772a47b165646de435c

cc @freddan80 @per @zingo @oscarandersson8218 @digantdesai

[pytorch-bot]

🔗 Helpful Links

🧪 See artifacts and rendered test results at hud.pytorch.org/pr/pytorch/executorch/16273

• 📄 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, 2 Unrelated Failures

As of commit f4183b4 with merge base df626bd ():

NEW FAILURES - The following jobs have failed:

• Apple / build-benchmark-app / macos-job (gh)
  RuntimeError: Command bash /Users/runner/work/_temp/exec_script failed with exit code 1
• Build documentation / build (buck2) / Build doc (gh)
  RuntimeError: Command docker exec -t 085875d5d53959966af8b210b47b643fb19ed42bca62d4dbe6e9cb98693b57df /exec failed with exit code 1
• pull / test-openvino-linux / linux-job (gh)
  RuntimeError: Command docker exec -t 83f1592843b5161c7b9988ffcc7dce453277b39c2028c7c15362a83c33113b47 /exec failed with exit code 1

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

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

• Apple / build-frameworks-ios / macos-job (gh) (trunk failure)
  RuntimeError: Command bash /Users/runner/work/_temp/exec_script failed with exit code 1

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.

This comment was automatically generated by Dr. CI and updates every 15 minutes.

[YufengShi-dudu]

Issues around lifted tensor constants have been fixed in this PR #16274

[zingo]

This got a merge conflict in process_node.py and need a rebase.

[zingo]

Failed tests are unrelated