[quant] Fix ConvTranspose mapping (#44844)
Summary: Pull Request resolved: https://github.com/pytorch/pytorch/pull/44844
Test Plan: Imported from OSS
Reviewed By: jerryzh168
Differential Revision: D23746466
Pulled By: z-a-f
fbshipit-source-id: cb84e0fef5ab82e8ed8dd118d9fb21ee7b480ef7
