[ET-VK] Quantized linear layer with NV cooperative matrix

[HarryHu-art]

Stack from ghstack (oldest at bottom):

• -> [ET-VK] Quantized linear layer with NV cooperative matrix #17582
• [ET-VK] Experimental FP Linear Implementation with NV cooperative matrix 2 extension #17581
• [ET-VK] Utility file for NVidia extensions #17580
• [ET-VK] FP Linear benchmark + test op #17579

A quantized linear shader using NV cooperative matrix2 It has the same quantization config as the exiting shader linear_q8ta_q8csw_tiled.glsl: e.g., int8 input, int8 weights, float output.

Differential Revision: D92782851

[pytorch-bot]

🔗 Helpful Links

🧪 See artifacts and rendered test results at hud.pytorch.org/pr/pytorch/executorch/17582

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❌ 3 New Failures

As of commit 6667f3b with merge base 0c87468 ():

NEW FAILURES - The following jobs have failed:

• Lint / lintrunner / linux-job (gh)
  >>> Lint for backends/vulkan/test/custom_ops/test_q8csw_linear.cpp:
• pull / test-openvino-linux / linux-job (gh)
  RuntimeError: Command docker exec -t dd74e8a828b5c24d1f359497f36f11b54fd642aae8c651f22e4a8cda067b2006 /exec failed with exit code 1
• pull / unittest-editable / macos / macos-job (gh)
  export/tests/test_target_recipes.py::TestTargetRecipes::test_mv3_model

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