Adding Conv1d to quantization default_mappings (#36352)
Summary: Pull Request resolved: https://github.com/pytorch/pytorch/pull/36352
Test Plan: Imported from OSS
Differential Revision: D20955781
Pulled By: z-a-f
fbshipit-source-id: 37fbcf329a6abcd9a367a73ad65ce543ed9ffe47
