Add lockscreen rotation as an optional rotation setting (2/2)

This will allow the user to select wether or not to use the
rotation settings for the lockscreen.  This is dependent
upon the rotation setting being checked.

Signed-off-by: Michael Bestas <mikeioannina@gmail.com>

Change-Id: If45c13a395e0d71b7c4cdcf484a6b8cef964ee37
JIRA: CYAN-339
Settings: Security: implement a pin keypad shuffler [2/2]

this is to further prevent people using the tablet guessing your pin based on fingerprints left on the screen
example of the expected outcome - https://www.dropbox.com/sh/r3xb2q53ksaqni9/Oz1Eu8Dm7O

PatchSet:
- fix checkbox was wrong assigned
- enable only for PIN Password lock
- small cleanup of old code

PatchSet:
- cleanup

PatchSet:
- add modes.....disabled/always/on request

Change-Id: I7e485827f6d62ee239015cfa96f2a20169d28486