[andoid] publishing to maven central (#53568)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/53568
Bintray, JCenter are going to be unavailable on May 1st
https://jfrog.com/blog/into-the-sunset-bintray-jcenter-gocenter-and-chartcenter/
Migrating publishing to Maven Central the same way as other fb oss projects, reference PR https://github.com/pytorch/pytorch/pull/53568/files
to publish
```
./android/gradlew -p android publish
```
<img width="697" alt="Screen Shot 2021-03-09 at 3 14 08 PM" src="https://user-images.githubusercontent.com/6638825/110551387-3e3fc000-80ea-11eb-9604-4e69d6e6d085.png">
Test Plan: Imported from OSS
Reviewed By: dreiss
Differential Revision: D26928884
Pulled By: IvanKobzarev
fbshipit-source-id: 8754c93a2542405870e2621be5b3f14e3d0081b9
