Granite speech speedup + model saving bugfix (#39028)
* ensure the query is updated during training
avoid unused parameters that DDP does not like
* avoid a crash when `kwargs` contain `padding=True`
trainers often pass this argument automatically
* minor
* Remove mel_spec lazy init, and rename to mel_filters.
this ensures save_pretrained will not crash when saving the processor during training
https://github.com/huggingface/transformers/blob/d5d007a1a0f0c11a726a54c8f00bd71825f84d02/src/transformers/feature_extraction_utils.py#L595
* minor - most feature extractors has a `sampling_rate` property
* speedup relative position embeddings
* fix several issues in model saving/loading:
- avoid modifying `self._hf_peft_config_loaded` when saving
- adapter_config automatically points to the original base model - a finetuned version should point to the model save dir.
- fixing model weights names, that are changed by adding an adapter.
* minor
* minor
* minor
* fixing a crash without peft active
* add todo to replace einsum
