Hide InputDevice.SOURCE_GESTURE_SENSOR from API

Change-Id: If009e9595fc593594b0e7764669996de137483a1
(cherry picked from commit dbb69170ddb51c9ad2f07733a9846d2867cf61b5)
Merge "Correct padding for status bar icons" into cm-10.2
(cherry picked from commit 37d5a2a34d26dbdd2548674c06c8cc075300728b)