Op info for activation functions 2 (softsign, tanh, tanhshrink, threshold, celu, sigmoid, mish, hardsigmoid) (#67492)
Summary: Pull Request resolved: https://github.com/pytorch/pytorch/pull/67492
Reviewed By: mruberry
Differential Revision: D32007691
Pulled By: samdow
fbshipit-source-id: 6cb14dc56e296154e2f48249049c4d2fe4f4d10d
