[ONNX] fix export of embedding with padding_idx (#53053) (#53530)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/53530
fix export of embedding with padding_idx
Test Plan: Imported from OSS
Reviewed By: navahgar, jamesr66a, malfet
Differential Revision: D26922420
Pulled By: SplitInfinity
fbshipit-source-id: b8b867a96a13cf810f9c0ae88fcc5c95072bb390
