introduce a new intrace to add op [PT changes] (#21149)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/21149
The diff modifies the interface for PyTorch operators in the benchmark suite
Reviewed By: zheng-xq
Differential Revision: D15433897
fbshipit-source-id: e858183431eb37d90313356716c2de8709372b58
