JIT serialization for Conv2d
Summary: Pull Request resolved: https://github.com/pytorch/pytorch/pull/24117
Test Plan: Imported from OSS
Reviewed By: eellison
Differential Revision: D16765475
Pulled By: jamesr66a
fbshipit-source-id: 4e6f91efac01cd26e2f1e21569242e4a45e4f8de
