Fix Lockscreen FC/reboot

PS2: register receiver in onResume()

Change-Id: If475f0750bbc408e727eb0d3cf532c936ad418e8
Signed-off-by: Gergely Szell (sethyx) <szell@hu.ibm.com>
Merge "Fix Lockscreen FC/reboot" into jb-mr1

Change-Id: I18b34936a78e5094dd44470905eda8c287568514