Add ordering attribute to sound setting preferences.

The ordering helps injected settings show up before work profile
settings.

Change-Id: Id840b721fc3ef82f53591a16b385965f7a719b67
Fix: 62997256
Test: visual

src/com/android/settings/notification/SettingPrefController.java

@@ -55,6 +55,7 @@ public abstract class SettingPrefController extends AbstractPreferenceController
     @Override
     public void displayPreference(PreferenceScreen screen) {
         mPreference.init(mParent);
+        super.displayPreference(screen);
         if (isAvailable()) {
             mSettingsObserver = new SettingsObserver();
         }