[vulkan] cat op (concatenate) (#41434)
Summary: Pull Request resolved: https://github.com/pytorch/pytorch/pull/41434
Test Plan: Imported from OSS
Reviewed By: AshkanAliabadi
Differential Revision: D22754941
Pulled By: IvanKobzarev
fbshipit-source-id: cd03577e1c2f639b2592d4b7393da4657422e23c
