Support for add relu functional module (#26612)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/26612
Add support for add relu functional module, this allows for fusion of add and relu quantized operations
ghstack-source-id: 91055976
Test Plan: buck test caffe2/test:quantization -- 'test_functional_module \(test_quantization\.FunctionalModuleTest\)' --print-passing-details
Differential Revision: D17518268
fbshipit-source-id: e1e8b4655d6b32405863ab9d1c7da111fb4343cc
