[2/2] OmniGears: Quick pulldown

This adds an option to toggle between left, right & centre.
left is the 30% from left, right is 30% from right &
centre is 40% in the middle.

Change-Id: Idbbc44c7809ab0b08f38be82b9002a1d48eb6e32
Merge "[2/2] OmniGears: Quick pulldown" into android-4.4