Update mapping dictionary to support functionalmodules and pooling operations (#24804)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/24804
ghstack-source-id: 89003799
Test Plan: buck test mode/dev caffe2/test:quantization -- 'test_resnet_base\ \(test_quantization.PostTrainingQuantTest\)' --print-passing-details
Differential Revision: D16879132
fbshipit-source-id: cd8c10182aa732ddf655bcda17f72ea08033a633
