Revert "Lock screen: Hide initial pages hints feature (2/2)"

This reverts commit 94ef3fb570364bd0afef23000ccead9e35b5d177.

Conflicts:
	res/values/strings.xml
	src/com/android/settings/paranoid/Lockscreen.java

Change-Id: I73b41e8584a1a4b574740ba80c9384bfd123a85f