pytorch

ab0d5ab9 - Port avg_pool2d() to ATen

Port avg_pool2d() to ATen Summary: Pull Request resolved: https://github.com/pytorch/pytorch/pull/21635 Differential Revision: D15768487 Pulled By: ezyang fbshipit-source-id: 85e1d883aded0f4d3ac5100719df335f5a337fc5