Update FakeUid interface to match BatteryStats.Uid

Change-Id: I900fed93c11f8d424ca0dd2afe562b421cd30eeb

src/com/android/settings/fuelgauge/FakeUid.java

@@ -264,4 +264,9 @@ public class FakeUid extends Uid {
     public BatteryStats.ControllerActivityCounter getModemControllerActivity() {
         return null;
     }
+
+    @Override
+    public Timer getBluetoothScanTimer() {
+        return null;
+    }
 }