[vulkan] max_pool2d (#41379)
Summary: Pull Request resolved: https://github.com/pytorch/pytorch/pull/41379
Test Plan: Imported from OSS
Reviewed By: AshkanAliabadi
Differential Revision: D22754944
Pulled By: IvanKobzarev
fbshipit-source-id: 5261337bb731a207a1532e6423c0d33f1307e413
