lockscreen: Add option to pass swipe-up-to-unlock (2/3)

* Option appears on PIN,pattern and password methods
* User should press back button to see notifications, clock etc.
* Instantly hides keyguard if Smart Lock has unlocked phone.

CYNGNOS-1873

Change-Id: I31256770869b20842c69edb4a7a57b2bad7b3ea7
Signed-off-by: eray orçunus <erayorcunus@gmail.com>