[ET-VK] Add ANY_STORAGE support to native_layer_norm

[SS-JIA]

Stack from ghstack (oldest at bottom):

• [ET-VK] Buckify parakeet #18062
• [ET-VK][qlinear] Add bias support to q4gsw and dq8ca_q4gsw quantized linear ops #18061
• [ET-VK] Add conv1d shaders and dispatch for 1D convolution #18060
• [ET-VK] Implement missing Vulkan operators for Parakeet TDT model #18059
• [ET-VK] Add ANY_STORAGE support to argmax and argmin #18058
• [ET-VK] Add ANY_STORAGE support to embedding #18057
• [ET-VK] Add ANY_STORAGE support to repeat #18056
• -> [ET-VK] Add ANY_STORAGE support to native_layer_norm #18055
• [ET-VK] Add ANY_STORAGE support to softmax and log_softmax #18054
• [ET-VK] Add ANY_STORAGE support to expand_copy #18053
• [ET-VK] Add ANY_STORAGE support to arange and full #18052
• [ET-VK] Generalize constant_pad_nd to support any storage type and packed dimension #18051
• [ET-VK] Add symint infrastructure to VulkanBackend and ComputeGraph #18050
• [ET-VK] Add Vulkan backend support for Parakeet runner and export #18049
• [ET-VK][ez] Fix IndexError in Vulkan partitioner DtypeSetList/TensorRepSetList #18048

Add a buffer shader variant for native_layer_norm using workgroup-based
reduction with shared memory. Each workgroup handles one output row, with
NUM_WORKERS (64) threads cooperatively reducing across the row width for
mean and variance computation. Rename the existing texture shader to
native_layer_norm_texture.glsl/.yaml and register the op as ANY_STORAGE
so buffer-storage inputs are now accepted.

Differential Revision: D95970158

[pytorch-bot]

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❌ 10 New Failures, 1 Unrelated Failure

As of commit 632b8ff with merge base f09bd55 ():

NEW FAILURES - The following jobs have failed:

• pull / test-llama-runner-qnn-linux (fp32, qnn_16a16w, qnn) / linux-job (gh)
  RuntimeError: Command docker exec -t 0a1ce0b3676075691e54bb05cbdedb8c10ce8b61981955972da307765bf6ba16 /exec failed with exit code 9
• pull / test-static-llama-qnn-linux (stories_260k_bc) / linux-job (gh)
  RuntimeError: Command docker exec -t 8e69ffc7c0acbec4d3a42d5972883b84f78781f0549c6bfc567af5f6d3ea87f1 /exec failed with exit code 92
• Test CUDA Builds / check-all-cuda-builds (gh)
  Process completed with exit code 1.
• Test CUDA Builds / export-model-cuda-artifact (mistralai, Voxtral-Mini-3B-2507, quantized-int4-tile-packed) / linux-job (gh)
  RuntimeError: Command docker exec -t 5cfd558d2eac0efbdb4fb1740f6db765f22b69ba8a494679baa331f490b1cf8f /exec failed with exit code 1
• Test CUDA Builds / export-model-cuda-artifact (openai, whisper-large-v3-turbo, non-quantized) / linux-job (gh)
  RuntimeError: Command docker exec -t efcda9d872b84648290f1fd885b0342f8a78fcc81029321d91666749ffdefe37 /exec failed with exit code 1
• Test CUDA Builds / export-model-cuda-artifact (Qwen, Qwen3-0.6B, non-quantized) / linux-job (gh)
  RuntimeError: Command docker exec -t a275dec53824fcd6531aed0e09cda4e1fc687b4f21531d5a8a5941740d5ae182 /exec failed with exit code 1
• Test CUDA Builds / test-executorch-cuda-build-12.6 / linux-job (gh)
  RuntimeError: Command docker exec -t 05de3c86236b871945673fc6f79fa2b928ab28204a814cd3088865476d230cd0 /exec failed with exit code 1
• Test CUDA Builds / test-models-cuda (conv1d) / linux-job (gh)
  RuntimeError: Command docker exec -t 4c640e3f60fdd33dd3d3a645d809a1009c64f5a6ea36986bfda353a9d9cbc7e7 /exec failed with exit code 1
• Test CUDA Windows Export and E2E / export-model-cuda-windows-artifact (mistralai, Voxtral-Mini-3B-2507, non-quantized) / linux-job (gh)
  RuntimeError: Command docker exec -t f25e55ba0e35498b96ca1b460d7dec8505aae750db313cca78b3f3e1c9d54b6c /exec failed with exit code 1
• Test CUDA Windows Export and E2E / export-model-cuda-windows-artifact (mistralai, Voxtral-Mini-3B-2507, quantized-int4-weight-only) / linux-job (gh)
  RuntimeError: Command docker exec -t 7a5715971d16c0166c8b9c08eb43e589c10144687d30225b380d8fcdfe41cdce /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

• pull / unittest / macos / macos-job (gh) (trunk failure)
  export/tests/test_target_recipes.py::TestTargetRecipes::test_linear_model

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