Enable constant folding for Reshape (#31054)
Summary:
Enabled constant folding for onnx::Reshape
Pull Request resolved: https://github.com/pytorch/pytorch/pull/31054
Reviewed By: hl475
Differential Revision: D18946951
Pulled By: houseroad
fbshipit-source-id: 499e8bf5fb091a94f7a27cbdf4311a23b1a6e3d3