Reenable some BF16 tests on CUDA (#48805)
Summary:
Fixes #{issue number}
Pull Request resolved: https://github.com/pytorch/pytorch/pull/48805
Reviewed By: agolynski
Differential Revision: D25375885
Pulled By: ailzhang
fbshipit-source-id: 2e19fe725ae9450bd1a2bc4e2d308c59b9f94fac
