Replace StatusBarKeyguardViewManager with KeyguardViewController

Not all Android verticals use the StatusBarKeyguardViewManager. To
prevent breakages on these alternative platforms, the more generic
KeyguardViewController should be used instead.

Bug: 214617520
Test: manual (on oriole & oriole_car), atest MediaHierarchyManagerTest
Change-Id: I07739b5763f78580475476aa81d5d1297f956fde
Merged-In: I07739b5763f78580475476aa81d5d1297f956fde