Migrate acosh to structured kernel (#55540)
Summary: Pull Request resolved: https://github.com/pytorch/pytorch/pull/55540
Test Plan: Imported from OSS
Reviewed By: pbelevich
Differential Revision: D27653766
Pulled By: SplitInfinity
fbshipit-source-id: 311087befcfaa4bd36d2539b3bfe1d5149922ca3
