Add optional offset arg to quantized_conv1d_nlc and precompute it AOT (#19344)

[khazaei]

Summary:

Extends cadence::quantized_conv1d_nlc (per_tensor / per_tensor_out) with
an optional offset tensor that carries the precomputed zero-point
correction term -(sum(W) * X_z) per output channel.

• Updates the op schema in functions.yaml / functions_hifi.yaml /
  ops_registrations.py to add Tensor? offset=None.
• Threads the new offset argument through the generic and HiFi conv1d_nlc
  kernels (currently unused by these kernels).
• Updates the depthwise conv1d_nlc callers to pass an empty optional.
• Extends PrecomputeForQuantizedConvPass to also precompute the offset
  for quantized_conv1d_nlc.per_tensor (sum over weight dims [1, 2]) and
  adds a unit test for the new path.

Reviewed By: abeakkas

Differential Revision: D103893688

[pytorch-bot]

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❌ 1 New Failure, 18 Unrelated Failures

As of commit 8c1a576 with merge base af90130 ():

NEW FAILURE - The following job has failed:

• pull / android / run-emulator (gh)
  The process '/usr/local/lib/android/sdk/platform-tools/adb' failed with exit code 224

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

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

• pull / test-lora-linux / linux-job (gh) (trunk failure)
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• pull / test-lora-multimethod-linux / linux-job (gh) (trunk failure)
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• pull / test-models-linux (ic4, portable, linux.4xlarge.memory) / linux-job (gh) (trunk failure)
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• pull / test-models-linux (ic4, xnnpack-quantization-delegation, linux.4xlarge.memory) / linux-job (gh) (trunk failure)
  ##[error]The operation was canceled.
• pull / test-models-linux (mobilebert, portable, linux.2xlarge) / linux-job (gh) (trunk failure)
  ##[error]The operation was canceled.
• pull / test-models-linux (mobilebert, xnnpack-quantization-delegation, linux.2xlarge) / linux-job (gh) (trunk failure)
  ##[error]The operation was canceled.
• pull / test-models-linux (phi_4_mini, portable, linux.4xlarge.memory) / linux-job (gh) (trunk failure)
  ##[error]The operation was canceled.
• pull / test-moshi-linux / linux-job (gh) (trunk failure)
  ##[error]The operation was canceled.
• pull / test-phi-3-mini-runner-linux / linux-job (gh) (trunk failure)
  ##[error]The operation was canceled.
• pull / test-sqnr-static-llm-qnn-linux (smollm2_135m) / linux-job (gh) (trunk failure)
  ##[error]The operation was canceled.
• pull / test-voxtral-realtime-xnnpack-linux / linux-job (gh) (trunk failure)
  ##[error]The operation was canceled.
• pull / test-vulkan-models-linux / linux-job (gh) (trunk failure)
  ##[error]The operation was canceled.
• pull / unittest / linux / linux-job (gh) (trunk failure)
  ##[error]The operation was canceled.
• pull / unittest / macos / macos-job (gh) (trunk failure)
  [ FAILED ] OpGridSampler2dTest.BatchSizeMismatchDies
• pull / unittest / windows / windows-job (gh) (trunk failure)
  ##[error]The operation was canceled.
• pull / unittest-editable / linux / linux-job (gh) (trunk failure)
  ##[error]The operation was canceled.
• pull / unittest-editable / macos / macos-job (gh) (trunk failure)
  [ FAILED ] OpGridSampler2dTest.BatchSizeMismatchDies
• pull / unittest-editable / windows / windows-job (gh) (trunk failure)
  ##[error]The operation was canceled.

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[meta-codesync]

@khazaei has exported this pull request. If you are a Meta employee, you can view the originating Diff in D103893688.

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