LockscreenInterface from ToggleLockscreenTile (Part 1 of 2)

The current longpress intent of the lockscreen tile is to open
the security settings activity. However, all lockscreen options
were moved to their own fragment months ago. This fixes the
tile longpress to open the current lockscreen options.

Change-Id: I4bf240a0f1e5794dac458082e20a4a488c85133b
Merge branch 'cm-11.0' of https://github.com/CyanogenMod/android_packages_apps_Settings into cm-11.0