Arm backend: Reenable test_fuse_const_ops_tosa_BI

[martinlsm]

The fusing of constant ops now works for TOSA BI again.

cc @digantdesai @freddan80 @per @zingo @oscarandersson8218

[pytorch-bot]

🔗 Helpful Links

🧪 See artifacts and rendered test results at hud.pytorch.org/pr/pytorch/executorch/10847

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❌ 4 New Failures

As of commit fe9120f with merge base 2ec8678 ():

NEW FAILURES - The following jobs have failed:

• pull / android / build-llm-demo / linux-job (gh)
  RuntimeError: Internal: unk is not defined.
• pull / test-llava-runner-linux / linux-job (gh)
  test_llava_export
• pull / unittest / linux / linux-job (gh)
  extension/llm/modules/test/test_position_embeddings.py::TiledTokenPositionalEmbeddingTest::test_tiled_token_positional_embedding_et
• trunk / test-coreml-delegate / macos-job (gh)
  RuntimeError: Command bash /Users/runner/work/_temp/exec_script failed with exit code 1

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[martinlsm]

@pytorchbot label "topic: not user facing"

[martinlsm]

@pytorchbot label "partner: arm"

[martinlsm]

@pytorchbot label ciflow/trunk

[zingo]

@martinlsm l this seem to have got a merge conflict :( and probably need a rebase.