Lockscreen Notifications: disable dynamic width for devices <= xhdpi

Change-Id: Id45a8d63411b488f9331dcab66bc76cbe5a4b313
Lockscreen Notification: fix default settings derp

Change-Id: Ief7344359059d72b6498d9d9ce61dfd11b43f404
Lockscreen Notifications: fix phone turning on in pocket

Change-Id: Ia0385280510f1d684c5dcf537dd2049c6916ddec