[quant][graphmode][fx] Add additional_qat_module_mapping (#46344)
Summary: Pull Request resolved: https://github.com/pytorch/pytorch/pull/46344
Test Plan: Imported from OSS
Reviewed By: vkuzo
Differential Revision: D24317438
fbshipit-source-id: f9e73aeb4c7a107c8df0bae8319464e7d5d7275b
