torch.lerp: cuda complex support (#54129)
Summary:
Fixes https://github.com/pytorch/pytorch/issues/54048
TODO
* [x] Add test
Pull Request resolved: https://github.com/pytorch/pytorch/pull/54129
Reviewed By: bdhirsh
Differential Revision: D27261878
Pulled By: anjali411
fbshipit-source-id: 10937a2eab944c73b5a98ec6278f50a876b8c7dc
