qlinear operator level benchmark (#22914)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/22914
Adding op level benchmarking for qlinear operator
Reviewed By: mingzhe09088
Differential Revision: D16285204
fbshipit-source-id: 99b734ddfa0af6aada820cac7b2f38ef7a5868cb
