-Replace androidx.lifecycle.LifecycleObserver with com.android.settingslib.core.lifecycle.LifecycleObserver
-Observer is added in DashboardFragment
Bug: 155195625
Test: make -j50 RunSettingsRoboTests
Change-Id: I99c587e4227e81ba521782f92b159051a1cba2d2
-Update in Volume panel and Sound settings
-Add test cases
Bug: 155345595
Test: make -j50 RunSettingsRoboTests
Change-Id: Id971038ddbf22924a747e4e1be3597face7ec6ed
-Add preference by remote session in Sound Setting
-Add slice item by remote session in Volume panel
-Replace media device data with media session data
-Add test case
Bug: 154918214
Test: make -j50 RunSettingsRoboTests
Change-Id: Ib1c873c9f99eebcba377f4115c4b9b4297b20c3d