Port adaptive_max_pool3d() to ATen (#19547)
Summary:
This is the second part of #18064.
Pull Request resolved: https://github.com/pytorch/pytorch/pull/19547
Differential Revision: D15046630
Pulled By: ezyang
fbshipit-source-id: 03f80602b94d47bca66bfd0dcab1b7bb99e5b7f1
