Fix DeepSpeed compatibility with weight_norm (#30881)

[jonnyli1125]

What does this PR do?

Fixes #30881

As described in the PyTorch docs, torch.nn.utils.weight_norm is deprecated in favour of torch.nn.utils.parametrizations.weight_norm, which renames the attributes weight_g and weight_v to parametrizations.weight.original0 and parametrizations.weight.original1 respectively.

This MR fixes a bug where when loading certain models with DeepSpeed ZeRO-3, the old attribute names were still being used, causing an AttributeError. The attribute names have been updated to the new ones if they are available.

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Who can review?

@ylacombe @sanchit-gandhi @pacman100

[amyeroberts]

cc @SunMarc @muellerzr

[muellerzr]

Thanks so much for doing this!

[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.

[SunMarc]

Thanks for fixing !

[amyeroberts]

Thanks for fixing!