Forward port "Add option to hide AlarmClock Icon in StatusBar"

From http://review.cyanogenmod.org/#/c/29106/

Change-Id: Ia4eb6ed32040eb5858dbb2d52f7e7773a0a46b0d
Merge pull request #1 from IAmTheOneTheyCallNeo/tachyon-2.0

Forward port "Add option to hide AlarmClock Icon in StatusBar"