Sort imports

Having consistent import order will reduce chance of merge
conflict between internal and external master

Test: rebuild
Change-Id: I0b1a170967ddcce7f388603fd521f6ed1eeba30b

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

@@ -28,10 +28,10 @@ import android.provider.Settings;
 import android.service.notification.ZenModeConfig;
 import android.util.Log;
 
-import com.android.settings.R;
-
 import androidx.annotation.VisibleForTesting;
 
+import com.android.settings.R;
+
 public class ZenModeBackend {
     @VisibleForTesting
     protected static final String ZEN_MODE_FROM_ANYONE = "zen_mode_from_anyone";