Revert "Disable usability hints on lockscreen [2/2]"

This reverts commit e7865687578ea589602fa0e4840d36f760f14910.
LockScreen: Option to hide initial page hints (1/2)

This will add an option to hide the initial page hints
that are shown left and right when the device is turned on.

Change-Id: Id4f29f7cfbaca6b4dd91f0b2de2b8195a966259b
Signed-off-by: Dirk Rettschlag <dirk.rettschlag@gmail.com>

Conflicts:
	core/java/android/provider/Settings.java
LockScreen: fix twisted logic for hiding page hints

DERP!

Change-Id: I394503ddd72a601f9768d150daa32222fffa6a05
Signed-off-by: Dirk Rettschlag <dirk.rettschlag@gmail.com>