expanded weights: conv faster rule (#73692)
Summary: Pull Request resolved: https://github.com/pytorch/pytorch/pull/73692
Test Plan: Imported from OSS
Reviewed By: bdhirsh
Differential Revision: D34719302
Pulled By: samdow
fbshipit-source-id: 2288320a5f5d6a442da78e9fbe722f300b844be9
(cherry picked from commit a4cf23383c16d3c61d53e9d21f426259d2dc2d37)
