[FSDP] Enable `use_orig_params=True` test (#88034)
I accidentally committed the `use_orig_params` PR with this test disabled. This PR simply re-enables it. It passes locally, so if CI is green, then this is an easy land.
Pull Request resolved: https://github.com/pytorch/pytorch/pull/88034
Approved by: https://github.com/H-Huang
