add no split modules for xlmrobertaxl

[ManuelFay]

What does this PR do?

Enables loading XLMRobertaWL with the device map for multiGPU training.

Fixes # (issue)

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@younesbelkada

[ManuelFay]

Follows the same no_split_modules than the XLMRoberta model

[younesbelkada]

Thank you for this ! Can you confirm accelerate tests pass ?

RUN_SLOW=1 pytest tests/models/xlm_roberta/test_modeling_xlm_roberta.py

[ManuelFay]

It skips both tests but no fails at least.

[HuggingFaceDocBuilderDev]

The docs for this PR live here. All of your documentation changes will be reflected on that endpoint. The docs are available until 30 days after the last update.

[younesbelkada]

Thanks ! It should be all good as it uses same logic as XLM Roberta !

[amyeroberts]

Thanks for adding this capability to this model!