pytorch

3b284ab0 - Adding BFP16 quantization/dequantization support to OSS (#63059)

Adding BFP16 quantization/dequantization support to OSS (#63059) Summary: Pull Request resolved: https://github.com/pytorch/pytorch/pull/63059 Supporting BFP16 quantization method to OSS. Currently only support CPU ghstack-source-id: 136639528 Test Plan: Imported from OSS Reviewed By: wanchaol Differential Revision: D30194538 fbshipit-source-id: ac248567ad8028457c2a91b77ef2ce81709fce53