[quant] ReflectionPad2d (#48036)
Summary: Pull Request resolved: https://github.com/pytorch/pytorch/pull/48036
Test Plan: Imported from OSS
Reviewed By: jerryzh168
Differential Revision: D25000347
Pulled By: z-a-f
fbshipit-source-id: f42bf3c6f7069385bc62609cf59d24c15734a058
