Quantized SumRelu (#19319)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/19319
Quantized SUM + ReLU (Fused). The implementation is the same as the one in the DNNLOWP.
Reviewed By: jianyuh
Differential Revision: D14866442
fbshipit-source-id: c8c737a37e35b6ce3c1c2077c07546aba16e0612
