Merge "update metadata for the studio landing page cards (for 2.2 content)...

Merge "update metadata for the studio landing page cards (for 2.2 content) edit landing page banner ("a dozen" --> "20") am: 0e98b64a am: f60f4f0b am: 6e9cbd97 am: b2801116" into nyc-mr1-dev-plus-aosp
am: 2012b802

Change-Id: I94d4ae12dccc5a2e3a7d22629777aedbd414c443