* add XPU path
* use accelerate API
* Update docs/source/en/tasks/semantic_segmentation.md
Co-authored-by: Steven Liu <59462357+stevhliu@users.noreply.github.com>
* update more places with accelerate API
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Co-authored-by: Steven Liu <59462357+stevhliu@users.noreply.github.com>
* Trainer - deprecate tokenizer for processing_class
* Extend chage across Seq2Seq trainer and docs
* Add tests
* Update to FutureWarning and add deprecation version