pytorch

ea0ffbb6 - [vulkan] Fix Addmm prepacking to persist after GPU flush (#48313)

[vulkan] Fix Addmm prepacking to persist after GPU flush (#48313) Summary: Pull Request resolved: https://github.com/pytorch/pytorch/pull/48313 Previous prepacking method would cause stored data to be lost whenever data is flushed during a `.cpu()` call. I updated the weight/bias prepacking to use the same method from `conv2d` in order to avoid this. Test Plan: Imported from OSS Reviewed By: AshkanAliabadi Differential Revision: D25125405 Pulled By: SS-JIA fbshipit-source-id: 2533994d522d90824fc25ee78c54016cfd0f3253