Update FakeUid interface to match BatteryStats.Uid

Change-Id: I900fed93c11f8d424ca0dd2afe562b421cd30eeb
diff --git a/src/com/android/settings/fuelgauge/FakeUid.java b/src/com/android/settings/fuelgauge/FakeUid.java
index d616010..e70ede5 100644
--- a/src/com/android/settings/fuelgauge/FakeUid.java
+++ b/src/com/android/settings/fuelgauge/FakeUid.java
@@ -264,4 +264,9 @@
     public BatteryStats.ControllerActivityCounter getModemControllerActivity() {
         return null;
     }
+
+    @Override
+    public Timer getBluetoothScanTimer() {
+        return null;
+    }
 }