Support to use te-dpa for sd model.

[Dido0o0]

What does this PR do ?

This PR is to enable the Stable Diffusion model can take use of DotProductAttention in addition to FlashAttention. To enable TE-DotProductAttention, users can set config use_te_dpa to be True.

Collection: [Note which collection this PR will affect]

Changelog

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• [ ] New Feature
• [ ] Bugfix
• [ ] Documentation

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Additional Information

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[ko3n1g]

Please rebase against upstream/main to allow us running the CI

[Victor49152]

Could you please rebase the branch to remove irrelevant changes first?

[alpha0422]

Dido is busy with other stuff, I made some modification on top of her changes. Here is the new PR: https://github.com/NVIDIA/NeMo/pull/10288, please review there, thanks! Closing this one.