Lockscreen: provide haptic feedback on longpress unlock

Change-Id: Ie7e32a0e3d410da26095bfce1a8e5ba94f0b5eaf
Signed-off-by: Dirk Rettschlag <dirk.rettschlag@gmail.com>
Merge "Lockscreen: provide haptic feedback on longpress unlock" into jb-mr1