graph mode: move hardsigmoid op to `single_input_general_value` category (#40055)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/40055
Noticed this while reading the `helper.cpp` file, seems like this op
should be in the `single_input_general_value` bucket.
Test Plan:
CI
Imported from OSS
Differential Revision: D22054257
fbshipit-source-id: 2ca16ff863d644cbd03c3938eeca0fb87e3e4638
