wrap cudaStreamSynchronize calls (#61889)
Summary:
This is a first step towards creating context manager that errors out on synchronizing calls.
Pull Request resolved: https://github.com/pytorch/pytorch/pull/61889
Reviewed By: albanD
Differential Revision: D29805280
Pulled By: ngimel
fbshipit-source-id: b66400fbe0941b7daa51e6b30abe27b9cccd4e8a
