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Summary:
- `_get_fileids_paths` in `LibriLightLimited` dataset was changed dataset in https://github.com/pytorch/audio/issues/2653, the absolute path becomes relative paths. This PR fixes the usage in hubert fine-tuning recipe to get correct audio paths.
- model options should be `hubert_pretrain_large` and `hubert_pretrain_xlarge` instead of `hubert_large` and `hubert_xlarge`.
- The input dimension of CTC linear layer varies depending on the model architecture, update it in lightning module.

cc simpleoier

Pull Request resolved: https://github.com/pytorch/audio/pull/2851

Reviewed By: carolineechen

Differential Revision: D41327998

Pulled By: nateanl

fbshipit-source-id: f92248ee84ec860b4e4dbef880c5794b338e1e2d