[ONNX] Support lstm_cell symbolic (#61476) (#62757)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/62757
Support lstm_cell symbolic
Test Plan: Imported from OSS
Reviewed By: SplitInfinity
Differential Revision: D30349061
Pulled By: msaroufim
fbshipit-source-id: f236177e3e5c62a30b7e4d91a623bcaef21b5eb1
Co-authored-by: jiafatom <jiafa@microsoft.com>
