[quant] Attach qconfig to all modules (#42576)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/42576
Previously we have qconfig propagate list and we only attach qconfig for modules
in the list, this works when everything is quantized in the form of module.
but now we are expanding quantization for functional/torch ops, we'll need to attach qconfig
to all modules
Test Plan: Imported from OSS
Reviewed By: vkuzo
Differential Revision: D22939453
fbshipit-source-id: 7d6a1f73ff9bfe461b3afc75aa266fcc8f7db517
