Fix Overview position in Drawer

- makes "Overview" the first entry in the Drawer (it was still under Wireless and Networks)

Change-Id: Iae425b885ea7b8ee611871a1739117341d1c94c1

res/xml/settings_headers.xml

@@ -18,10 +18,6 @@
         xmlns:android="http://schemas.android.com/apk/res/android">
 
 
-    <!-- WIRELESS and NETWORKS -->
-    <header android:id="@+id/wireless_section"
-        android:title="@string/header_category_wireless_networks" />
-
     <!-- Dashboard -->
     <!--TODO: android:icon="@drawable/ic_settings_dashboard"-->
     <header
@@ -29,6 +25,10 @@
         android:fragment="com.android.settings.dashboard.DashboardSummary"
         android:title="@string/dashboard_title" />
 
+    <!-- WIRELESS and NETWORKS -->
+    <header android:id="@+id/wireless_section"
+            android:title="@string/header_category_wireless_networks" />
+
     <!-- Wifi -->
     <header
         android:id="@+id/wifi_settings"