Support for int32 indices in sub8b quantized embedding op

[JacobSzwejbka]

Summary: Add support for lower bit indices.

Differential Revision: D90402567

[pytorch-bot]

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❌ 1 New Failure, 1 Cancelled Job, 15 Pending

As of commit a1a59e4 with merge base 88cfb1d ():

NEW FAILURE - The following job has failed:

• pull / test-llama-runner-qnn-linux (fp32, qnn_8a8w, qnn) / linux-job (gh)
  RuntimeError: Command docker exec -t d4a5f1224c419d12cf581e6e2770b66845d2717e69b68133221de5ac0f82dfda /exec failed with exit code 1

CANCELLED JOB - The following job was cancelled. Please retry:

• Check Labels (gh)

UNSTABLE - The following job is marked as unstable, possibly due to flakiness on trunk:

• ⏳ pull / android / run-emulator (gh) (#16137)

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[meta-codesync]

@JacobSzwejbka has exported this pull request. If you are a Meta employee, you can view the originating Diff in D90402567.

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