Enable switching between fp16 and quantized adapters

[billmguo]

Differential Revision: D105388759

[pytorch-bot]

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• [ROCm] MI350 CI jobs will have longer queue times due to CI migration

❌ 1 New Failure, 1 Unrelated Failure

As of commit 7d15904 with merge base 3a9abee ():

NEW FAILURE - The following job has failed:

• pull / test-sqnr-static-llm-qnn-linux (smollm2_135m) / linux-job (gh)
  RuntimeError: Command docker exec -t ecb12265de67efca570c3d8546dadb75a4bce12df09a94798a5eca2a40545e25 /exec failed with exit code 92

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

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

• pull / test-llama-runner-qnn-linux (fp32, qnn_16a16w, qnn) / linux-job (gh) (trunk failure)

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[meta-codesync]

@billmguo has exported this pull request. If you are a Meta employee, you can view the originating Diff in D105388759.

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