[quant][graphmode][fx][fix] Support dictionary output (#44508)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/44508
Bug fix for dictionary output
Test Plan: Imported from OSS
Reviewed By: z-a-f
Differential Revision: D23636182
fbshipit-source-id: 0c00cd6b9747fa3f8702d7f7a0d5edb31265f466
