llava next image encoder to allow un-aligned patch / image sizes

[jimexist]

What does this PR do?

Fixes # (issue)

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[Narsil]

Could you link to the problematic model so we can have a reference of what's expected and check that it's valid.

The assertion exists because it was supposed to be asserted as no such calculation is made in the original python code and drift is expected if it's violated.

[jimexist]

Could you link to the problematic model so we can have a reference of what's expected and check that it's valid.

The assertion exists because it was supposed to be asserted as no such calculation is made in the original python code and drift is expected if it's violated.

Thanks for the reminder

https://huggingface.co/google/siglip-so400m-patch14-384/discussions/4

This is the discussion link and the model is siglip so400m

[jimexist]

@Narsil let me know if this is an acceptable approach.
another solution is to allow the check to be by-passed given args or env var. but i guess it's more invasive to the codebase