Fix WifiSettings / AdvancedWifiSettings indexing

- fix typo for the declaration of the SearchIndexableResource for
AdvancedWifiSettings that was not the correct one

See bug: #12910134 Implement Search into the Settings App

Change-Id: I964ca7ae4ba75a382af099e023383fc00773c844
diff --git a/src/com/android/settings/search/SearchIndexableResources.java b/src/com/android/settings/search/SearchIndexableResources.java
index 5f380eb..e1bad38 100644
--- a/src/com/android/settings/search/SearchIndexableResources.java
+++ b/src/com/android/settings/search/SearchIndexableResources.java
@@ -65,7 +65,7 @@
                         WifiSettings.class.getName(),
                         R.drawable.ic_settings_wireless));
 
-        sResMap.put(WifiSettings.class.getName(),
+        sResMap.put(AdvancedWifiSettings.class.getName(),
                 new SearchIndexableResource(
                         Ranking.getRankForClassName(AdvancedWifiSettings.class.getName()),
                         R.xml.wifi_advanced_settings,