add PT maxpool and avgpool ops to the benchmark suite (#21200)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/21200
This diff adds MaxPool1d/2d/3d and AvgPool1d/2d/3d to the benchmark suite.
Reviewed By: hl475
Differential Revision: D15541980
fbshipit-source-id: 394d136ee94a16ee24285939323ca5fe317e99d3
