Summary: [This commit](1146013e9e) (or diff D4501142) adds an `auto` option for margins. This diff allows you to leverage that in android via attribute `yoga:margin_all="auto"` (and as expected for the other edges).
Reviewed By: emilsjolander
Differential Revision: D4634684
fbshipit-source-id: 158f70ec975b5bb3a666e590b76eb52daeb38f49