Reorder and clean up imports.

Test: rebuild
Change-Id: I178485c84ae7146f991fd77b6d7504b029942a68
diff --git a/src/com/android/settings/development/UsbAudioRoutingPreferenceController.java b/src/com/android/settings/development/UsbAudioRoutingPreferenceController.java
index c73412d..0c1bf25 100644
--- a/src/com/android/settings/development/UsbAudioRoutingPreferenceController.java
+++ b/src/com/android/settings/development/UsbAudioRoutingPreferenceController.java
@@ -18,13 +18,14 @@
 
 import android.content.Context;
 import android.provider.Settings;
-import androidx.annotation.VisibleForTesting;
-import androidx.preference.SwitchPreference;
-import androidx.preference.Preference;
 
 import com.android.settings.core.PreferenceControllerMixin;
 import com.android.settingslib.development.DeveloperOptionsPreferenceController;
 
+import androidx.annotation.VisibleForTesting;
+import androidx.preference.Preference;
+import androidx.preference.SwitchPreference;
+
 public class UsbAudioRoutingPreferenceController extends DeveloperOptionsPreferenceController
         implements Preference.OnPreferenceChangeListener, PreferenceControllerMixin {