[quant][graphmode][fx] Add functional conv2d + relu (#51079)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/51079
Added support for functional conv2d + relu, will add conv1d and conv3d in future PR
Test Plan:
python test/test_quantization.py TestQuantizeFxOps.test_functional_conv
Imported from OSS
Reviewed By: vkuzo
Differential Revision: D26089964
fbshipit-source-id: 8703de17de1469f7076651c386c83fb5922a56eb
