[vulkan] Add hardswish and hardsigmoid activations to Vulkan (#53362)
Summary: Pull Request resolved: https://github.com/pytorch/pytorch/pull/53362
Test Plan: Imported from OSS
Reviewed By: AshkanAliabadi
Differential Revision: D27098430
Pulled By: SS-JIA
fbshipit-source-id: aa2edf2af4ebabe95dbc02d33ecff6f7c9f0953c
