[quant][fx2trt] Add lowering support for reference linear/conv modules (#64368)
Summary: Pull Request resolved: https://github.com/pytorch/pytorch/pull/64368
Test Plan:
python torch/fx/experimental/fx2trt/example/quantized_resnet_test.py
Imported from OSS
Reviewed By: 842974287
Differential Revision: D30708738
fbshipit-source-id: 88142b7ce43ed96093597112dab03a2d277de993
