fix: Add Torch-TRT IR pass-through argument (#1947)
Summary:
- Fix issue where selected IR was not being propagated to backend
Pull Request resolved: https://github.com/pytorch/benchmark/pull/1947
Reviewed By: davidberard98
Differential Revision: D49757521
Pulled By: xuzhao9
fbshipit-source-id: 5e849caf042b33951d79e40c639e317a2c177f2f
