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/connecteddevice/usb/UsbDefaultFragment.java

@@ -20,6 +20,8 @@ import android.content.Context;
 import android.graphics.drawable.Drawable;
 import android.os.Bundle;
 
+import androidx.annotation.VisibleForTesting;
+
 import com.android.internal.logging.nano.MetricsProto;
 import com.android.settings.R;
 import com.android.settings.Utils;
@@ -32,8 +34,6 @@ import com.google.android.collect.Lists;
 
 import java.util.List;
 
-import androidx.annotation.VisibleForTesting;
-
 /**
  * Provides options for selecting the default USB mode.
  */