Use only one BurnInParameters for AoD Burn in

There is no need for SharedNotificationContainerViewModel to use
a separate BurnInParameters. They should only be provided by the
keyguard root view model itself, with the outputting flows used
in both locations.

This prevents a case where the notifications could slightly
overlap smartspace.

Test: atest AodBurnInViewModelTest SharedNotifcationViewModelTest
Fixes: 364574203
Flag: com.android.systemui.migrate_clocks_to_blueprint
Change-Id: I0d173d203bf92975c5c331008429919a9b165a2f