Arm backend: forward fix internal failures

[SS-JIA]

Stack from ghstack (oldest at bottom):

• -> Arm backend: forward fix internal failures #15759

Title says it all! forward fix of D86741047, which caused build failures from introducing a new file.

Differential Revision: D86786510

cc @freddan80 @per @zingo @oscarandersson8218 @digantdesai

[pytorch-bot]

🔗 Helpful Links

🧪 See artifacts and rendered test results at hud.pytorch.org/pr/pytorch/executorch/15759

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❌ 9 New Failures, 1 Unrelated Failure

As of commit 1616903 with merge base failed to retrieve merge base, please contact dev infra:

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)
  Process completed with exit code 1.
• pull / android / run-emulator (gh)
  The process '/usr/bin/sh' failed with exit code 255
• pull / test-moshi-linux / linux-job (gh)
  RuntimeError: Could not load libtorchcodec. Likely causes:
• pull / unittest / linux / linux-job (gh)
  backends/xnnpack/test/recipes/test_xnnpack_recipes.py::TestXnnpackRecipes::test_int8_static_quant_recipe
• pull / unittest / macos / macos-job (gh)
  backends/xnnpack/test/recipes/test_xnnpack_recipes.py::TestXnnpackRecipes::test_int8_static_quant_recipe
• pull / unittest-editable / linux / linux-job (gh)
  backends/xnnpack/test/recipes/test_xnnpack_recipes.py::TestXnnpackRecipes::test_int8_static_quant_recipe
• pull / unittest-editable / macos / macos-job (gh)
  backends/xnnpack/test/recipes/test_xnnpack_recipes.py::TestXnnpackRecipes::test_int8_static_quant_recipe
• trunk / unittest-release / linux / linux-job (gh)
  backends/xnnpack/test/recipes/test_xnnpack_recipes.py::TestXnnpackRecipes::test_int8_static_quant_recipe
• trunk / unittest-release / macos / macos-job (gh)
  backends/xnnpack/test/recipes/test_xnnpack_recipes.py::TestXnnpackRecipes::test_int8_static_quant_recipe

FLAKY - The following job failed but was likely due to flakiness present on trunk:

• trunk / test-models-linux-aarch64 (phi_4_mini, portable, linux.arm64.m7g.4xlarge) / linux-job (gh) (detected as infra flaky with no log or failing log classifier)

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[zingo]

Why not merge this anyway, seems a good idea to use a glob here

[SS-JIA]

@zingo closed since the original PR was reverted. Figured it's easier to just add it to the re-land PR: #15778

[SS-JIA]

oh, actually I just realized that the changes are independent :p I suppose we could have landed it separately 😅