Add OpInfo tests for torch.inner (#55536)
Summary: Pull Request resolved: https://github.com/pytorch/pytorch/pull/55536
Test Plan: Imported from OSS
Reviewed By: mruberry
Differential Revision: D27650199
Pulled By: ejguan
fbshipit-source-id: 5805f1ca25019fc57971e31659fac345646368b6
