Migrate some torch.fft tests to use OpInfos (#48428)
Summary: Pull Request resolved: https://github.com/pytorch/pytorch/pull/48428
Test Plan: Imported from OSS
Reviewed By: ngimel
Differential Revision: D25868666
Pulled By: mruberry
fbshipit-source-id: ca6d0c4e44f4c220675dc264a405d960d4b31771
