Make TopLevelSettings un-searchable and direct result to relevant page.

Fixes: 149372187
Test: manual & robotest
Change-Id: I9daca03d1c11a262f8e3b55bb46aabbc035ece96

src/com/android/settings/homepage/TopLevelSettings.java

@@ -100,5 +100,12 @@ public class TopLevelSettings extends DashboardFragment implements
     }
 
     public static final BaseSearchIndexProvider SEARCH_INDEX_DATA_PROVIDER =
-            new BaseSearchIndexProvider(R.xml.top_level_settings);
+            new BaseSearchIndexProvider(R.xml.top_level_settings) {
+
+                @Override
+                protected boolean isPageSearchEnabled(Context context) {
+                    // Never searchable, all entries in this page are already indexed elsewhere.
+                    return false;
+                }
+            };
 }