add backend_config_dict to checkGraphModeFxOp (#66499)
Summary: Pull Request resolved: https://github.com/pytorch/pytorch/pull/66499
Test Plan: Imported from OSS
Reviewed By: jerryzh168
Differential Revision: D31582518
Pulled By: rahxephon89
fbshipit-source-id: b8107bb7140517f2dc32bf692c6b916536ea35c3
