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/wifi/tether/TetherService.java

@@ -40,11 +40,11 @@ import android.text.TextUtils;
 import android.util.ArrayMap;
 import android.util.Log;
 
+import androidx.annotation.VisibleForTesting;
+
 import java.util.ArrayList;
 import java.util.List;
 
-import androidx.annotation.VisibleForTesting;
-
 public class TetherService extends Service {
     private static final String TAG = "TetherService";
     private static final boolean DEBUG = Log.isLoggable(TAG, Log.DEBUG);