[FIX]: CLIP support for flash-attention-3
Author: akashpalla
Pull request: yes

# What does this PR do?

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Fixes #41668, Enabling CLIP to work with Flash attention 3



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Comments:
**[For maintainers]** Suggested jobs to run (before merge)

run-slow: clip, metaclip_2

Sorry about this but #41750 will likely supersede this PR. Things got a bit more complicated than initially anticipated :sweat: 

Closing in favor of: https://github.com/huggingface/transformers/pull/41750. Thanks for the quick fix