add android build workflow to pytorch CI jobs (#18919)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/18919
ghimport-source-id: 3f0ce4334c899d262403d88bd8bd7513e99570f0
Reviewed By: kostmo
Differential Revision: D14800728
Pulled By: ljk53
fbshipit-source-id: fec2e34c192181b8fa31c9a30f60c9bf7388f083
