Update media_controls_lock_screen setting behavior

When the setting is disabled, hide the media carousel everywhere when
the device is on lockscreen, not just in the keyguard layout

Bug: 314333719
Test: manual
Test: atest MediaHierarchyManagerTest
Flag: NONE

Change-Id: I4f618e4013db894291e6fca9d49bceb1cb7e4bd9
Merged-In: I4f618e4013db894291e6fca9d49bceb1cb7e4bd9
5 files changed