[export] Support non-tensor tuple hoo outputs (#119402)
There's an internal custom op which has a None output, so when it becomes auto_functionalized, the HOO's output is (None, Tensor, Tensor, ...). This PR adds support for the None output, and any int/bool outputs from HOOs.
Pull Request resolved: https://github.com/pytorch/pytorch/pull/119402
Approved by: https://github.com/suo, https://github.com/avikchaudhuri
