[quant][graphmode][fx][refactor] insert_quantize_node (#47880)
Summary: Pull Request resolved: https://github.com/pytorch/pytorch/pull/47880
Test Plan: Imported from OSS
Reviewed By: vkuzo
Differential Revision: D24928797
fbshipit-source-id: 9a8b359cabfb800da86da114bf26bb5bd99d3fff
