Arm backend: Fuse consecutive CONCAT_SHAPES

[oscarandersson8218]

Make sure that the arguments to CONCAT_SHAPE has rank==1 to make dim_order permutation work.

cc @digantdesai @freddan80 @per @zingo @mansnils @Sebastian-Larsson @robell

[pytorch-bot]

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❌ 3 New Failures, 3 Cancelled Jobs, 3 Unrelated Failures

As of commit 3b83fe8 with merge base 28b4813 ():

NEW FAILURES - The following jobs have failed:

• pull / unittest / macos / macos-job (gh)
  export/tests/test_target_recipes.py::TestTargetRecipes::test_linear_model
• pull / unittest-editable / macos / macos-job (gh)
  export/tests/test_target_recipes.py::TestTargetRecipes::test_linear_model
• trunk / test-arm-backend-vkml (test_pytest_ops_vkml) / linux-job (gh)
  RuntimeError: Command docker exec -t 7e0994a21bd20fd3e10ffeecc235fbeef34efa5df4d80fd283e303553ac30db5 /exec failed with exit code 1

CANCELLED JOBS - The following jobs were cancelled. Please retry:

• periodic / gather-models (gh)
• trunk / test-models-macos-coreml (w2l) / macos-job (gh)
  ##[error]The operation was canceled.
• trunk / test-models-macos-cpu (mobilebert, xnnpack-quantization-delegation) / macos-job (gh)
  ##[error]The operation was canceled.

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

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

• pull / unittest / windows / windows-job (gh) (trunk failure)
  ##[error]The operation was canceled.
• pull / unittest-editable / windows / windows-job (gh) (trunk failure)
  ##[error]The operation was canceled.
• trunk / unittest-release / windows / windows-job (gh) (trunk failure)
  ##[error]The operation was canceled.

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[oscarandersson8218]

Unrelated failures. test_permute_vgf_quant[rank_4_large] failure is caused by #18314.

[zingo]

OK to merge Added file should need no buck2 changes it should be needed this should be covered by glob(). (tests files already excluded)