Added support for bias in optimized linear operation

[DavitGrigoryan132]

Summary

#8234

This PR is adding a functionality to use bias in optimized linear operation

[pytorch-bot]

🔗 Helpful Links

🧪 See artifacts and rendered test results at hud.pytorch.org/pr/pytorch/executorch/9527

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❌ 9 New Failures

As of commit b637f4b with merge base 77c35f5 ():

NEW FAILURES - The following jobs have failed:

• Build documentation / build (buck2) / Build doc (gh)
  RuntimeError: Command docker exec -t e1d82a7d952b482cc80a91ad6ef06a7fa7ee1ea35322caa5723038cbe9ef08ec /exec failed with exit code 1
• Lint / lintrunner / linux-job (gh)
  >>> Lint for kernels/test/op_linear_test.cpp:
• pull / android / build-llm-demo / linux-job (gh)
  RuntimeError: Command docker exec -t e0f0676b90097115478a2d068a9867554d3e44a02192a2c3b73c348edc00a16e /exec failed with exit code 139
• pull / test-llama-runner-linux (bf16, custom, linux.2xlarge, executorch-ubuntu-22.04-clang12) / linux-job (gh)
  RuntimeError: Command docker exec -t 975429f724ca7cca0f4690f55efe79233af809df31aa4549e423b41b04845f3b /exec failed with exit code 139
• pull / test-models-linux (phi_4_mini, portable, linux.4xlarge.memory) / linux-job (gh)
  RuntimeError: Command docker exec -t 91e5094c296c40c41947f0c71fb77d236664f7415d01933a2d0ed31cf9a79689 /exec failed with exit code 132
• pull / unittest / linux / linux-job (gh)
  RuntimeError: Command docker exec -t 57d5679fd639fce0753f7e0c8342bcc144552876dc291c3bee30f502027c5333 /exec failed with exit code 8
• pull / unittest / macos / macos-job (gh)
  RuntimeError: Command bash /Users/ec2-user/runner/_work/_temp/exec_script failed with exit code 8
• pull / unittest-editable / linux / linux-job (gh)
  RuntimeError: Command docker exec -t 87ba07cb1aeda3d189b4180d0ff8bcc44766c34cd2f6dffc8048cdd40a12397a /exec failed with exit code 8
• pull / unittest-editable / macos / macos-job (gh)
  RuntimeError: Command bash /Users/ec2-user/runner/_work/_temp/exec_script failed with exit code 8

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[DavitGrigoryan132]

@pytorchbot label "topic: not user facing"

[swolchok]

thanks for doing this! just some straightforward stuff to improve; the test is the most important of the concerns by far

[DavitGrigoryan132]

Hi @swolchok can you please review the changes?

[swolchok]

LGTM, thanks

[DavitGrigoryan132]

Hey @swolchok thanks for reviewing the PR. Are there anything from my side that I need to do for PR to be merged?

[swolchok]

Hey @swolchok thanks for reviewing the PR. Are there anything from my side that I need to do for PR to be merged?

there are CI issues, particularly 1) lintrunner and 2) UBSAN on tests. can you please fix them?