pytorch

4f969db3 - [nnc] Fix batchnorm implementation (#64112)

[nnc] Fix batchnorm implementation (#64112) Summary: Pull Request resolved: https://github.com/pytorch/pytorch/pull/64112 Fixes #64062 Test Plan: Imported from OSS Reviewed By: zhxchen17 Differential Revision: D30622897 Pulled By: bertmaher fbshipit-source-id: 7d7c6131aa786e61fa1d0a517288396a0bdb1d22