Add Vulkan op Conv2D. (#46900)
Summary: Pull Request resolved: https://github.com/pytorch/pytorch/pull/46900
Test Plan: Imported from OSS
Reviewed By: IvanKobzarev
Differential Revision: D24568211
Pulled By: AshkanAliabadi
fbshipit-source-id: 2819c8308292055aa4e8130109d8764d885c1340
