[MTPG] Enable for some tests in test_fsdp_misc (#102043)
Enables MTPG for some FSDP tests in this file. Tests that need the
backward pass and warning logging are left as follow up work.
Backward pass issue: It seems that there is a hang with all_gather. Will sync with @kumpera on this.
Warning issue: We have a couple tests that regex check on warnings, but in the
multithreaded scenario these warnings are somehow not logged.
Differential Revision: [D43209769](https://our.internmc.facebook.com/intern/diff/D43209769/)
Pull Request resolved: https://github.com/pytorch/pytorch/pull/102043
Approved by: https://github.com/awgu