[2/2] OmniGears: Smart pulldown

Base: https://gerrit.omnirom.org/#/c/5034/

Thanks to SlimRoms for their device type methods.

Change-Id: I7d25d28fd44401e04e0a46c561ddffc1f3be2329
Merge "[2/2] OmniGears: Smart pulldown" into android-4.4