pytorch

dc29604f - [iOS GPU][BE][3/n] - Rename MetalTensor to MetalTensorImplStorage (#53430)

[iOS GPU][BE][3/n] - Rename MetalTensor to MetalTensorImplStorage (#53430) Summary: Pull Request resolved: https://github.com/pytorch/pytorch/pull/53430 The definition of Metal tensor is confusing, as we're using it to initialize the MetalTensorImpl. It acts more like a TensorImplStorage. ghstack-source-id: 123038073 Test Plan: 1. Sandcastle CI 2. Circle CI 3. AIBench/Mobilelab Reviewed By: SS-JIA Differential Revision: D26685439 fbshipit-source-id: e0487d0884e4efc3044d627ed0e4af454eca9d67