OpInfo fix: `conv_transpose2d` (#63389)
Summary:
Addresses comment: https://github.com/pytorch/pytorch/pull/62882#issuecomment-899679606.
cc: mruberry ngimel
Pull Request resolved: https://github.com/pytorch/pytorch/pull/63389
Reviewed By: mruberry
Differential Revision: D30377481
Pulled By: ngimel
fbshipit-source-id: 0fa21acc3503c259c9b27463e8555247c43d9e2e
