Update to use new UsageStats API

Change-Id: Ic6f9523c4c70f8b832d8f57551417f4f19ea144f
diff --git a/AndroidManifest.xml b/AndroidManifest.xml
index 113dc1e..393498d 100644
--- a/AndroidManifest.xml
+++ b/AndroidManifest.xml
@@ -1507,7 +1507,7 @@
             </intent-filter>
         </activity>
 
-        <activity android:name="UsageStats" android:label="@string/usage_stats_label"
+        <activity android:name="UsageStatsActivity" android:label="@string/usage_stats_label"
                   android:taskAffinity="com.android.settings"
                   android:parentActivityName="Settings">
             <intent-filter>