print padding_mode for Conv modules if not zeros (#23996)
Summary:
padding_mode info is helpful if it's not default.
`Conv1d(3, 4, kernel_size=(2,), stride=(2,), padding=(1,), padding_mode=circular)`
Pull Request resolved: https://github.com/pytorch/pytorch/pull/23996
Differential Revision: D16766348
Pulled By: ailzhang
fbshipit-source-id: b2511ec0ab6b6cfb32c0915fe9e84f9b96a641f5