QS tiles custom background (1/2)
- Link dynamically ribbon background with QS backround

This commit is not for my own and instead of this the owner is @kufikugel
original commit (only background codes): SlimRoms/frameworks_base@d85304f
Again, thanks to him.

Change-Id: Iaafdb6785bb3b6a54d9b8d070bccf4cd965b2a6f