[reland] OpInfo: `adaptive_avg_pool2d` (#62935)
Summary:
This PR is an attempt to reland https://github.com/pytorch/pytorch/pull/62704.
**What has changed?**
The op has non-deterministic behavior, hence an appropriate `gradcheck` wrapper had to be added.
cc: mruberry zou3519 heitorschueroff kshitij12345
Pull Request resolved: https://github.com/pytorch/pytorch/pull/62935
Reviewed By: anjali411
Differential Revision: D30225095
Pulled By: zou3519
fbshipit-source-id: 644873cc21d44b19c8b68f9edff691913778de0e
