NSSL - Only apply y translation when on keyguard

... and not when the shade is expanded at all. This ensures the
correct collpase animation runs.

Fixes: 319499695
Test: atest SharedNotificationContainerViewModelTest
Flag: ACONFIG com.android.systemui.keyguard_shade_migration_nssl
DEVELOPMENT

Change-Id: I4eee27b6309c9104f145b133b92a3d20f8d254b6
2 files changed