Fix quantized linear -> quantized fully connected replacement pass + add quantized fully connected per_tensor

[mcremon-meta]

Summary: As titled. This allows removing the outer loop unrolling in cases where the input to linear is a vector. Shaves ~10k cyles from WW stage 1 model.

Differential Revision: D66208417

[pytorch-bot[bot]]

:link: Helpful Links

:test_tube: See artifacts and rendered test results at hud.pytorch.org/pr/pytorch/executorch/6976

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• [DomainsOnly] Jobs fail with GLIBC version not found

:x: 1 New Failure

As of commit b0eb57f1b2b5f34b20a88677ed56453a59cea3ba with merge base f40daea76b25a610d2881590226efa49f1dc8d63 ():

NEW FAILURE - The following job has failed:

* [pull / unittest / macos / macos-job](https://hud.pytorch.org/pr/pytorch/executorch/6976#33234966887) ([gh](https://github.com/pytorch/executorch/actions/runs/11924505987/job/33234966887)) `RuntimeError: Command bash /Users/ec2-user/runner/_work/_temp/exec_script failed with exit code 1`

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This pull request was exported from Phabricator. Differential Revision: D66208417

[mcremon-meta]

@pytorchbot label "topic: not user facing"