[test_models_transformer_ltx.py] help us test torch.compile() for impactful models (#11512)
* Update test_models_transformer_ltx.py
* Update test_models_transformer_ltx.py
* Update test_models_transformer_ltx.py
* Update test_models_transformer_ltx.py
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Co-authored-by: Sayak Paul <spsayakpaul@gmail.com>