Lockscreen: Notifications: Fix for devices without proximity sensor

Change-Id: I6b587fb7516c1aac89cc3245793731f8fca6bece
HOVER [2/2]

Change-Id: I36eab90e6c06b31c053293a35034d8f5b99fbf03
HOVER: Options to exclude non-clearable and low priority notifications [2/2]

Change-Id: Iefb4e375fa77974749bbbca0b001bb79409364a3
Master switch to disable Hover [2/2]

Change-Id: I600a702fa95c842e567d4935eff45f427e5e25b6
HOVER: Option to disable HOVER-Button in StatusBar [2/2]

Change-Id: I02da0a717c0086dc0ffde985b504821bdb289eda
HOVER: Arrange Settings

Change-Id: I8717a75fc4f44e0def5dd264d4f72d0fcfcd98c0
HOVER: Option to only show up in Fullscreen-Mode [2/2]

Change-Id: I6a9305001884f122441ce47b7128425cd21c6473