update model list and batch sizes (#1304)
Summary:
Pull Request resolved: https://github.com/pytorch/benchmark/pull/1304
uncomment models that were used for performance tests for DDPOptimizer, and update resnet50 batch size to 128
Test Plan: Imported from OSS
Reviewed By: wconstab
Differential Revision: D41312109
Pulled By: davidberard98
fbshipit-source-id: 59c192078beb459854cc8481c5c9353bd3090695
