Vulkan MobileNetv2 unit test. (#47616)
Summary: Pull Request resolved: https://github.com/pytorch/pytorch/pull/47616
Test Plan: Imported from OSS
Reviewed By: SS-JIA
Differential Revision: D24848639
Pulled By: AshkanAliabadi
fbshipit-source-id: 81a432a14cdca444ec0f70a4f8692a3abf4d2ea9
