Update Search Suggestions and Results Panel

- fix overdraw use as less backgrounds as possible
- make it look like the Dashboard with padding left and right

See bug: #15384992 Setting Dashboard - padding updates

Change-Id: I30ff33e51bc3c73e888d45f0ce6e16784eb6721c

src/com/android/settings/dashboard/SearchResultsSummary.java

@@ -473,8 +473,6 @@ public class SearchResultsSummary extends Fragment {
             SuggestionItem item = (SuggestionItem) getItem(position);
             query.setText(item.query);
 
-            view.setBackgroundResource(R.drawable.dashboard_tile_background);
-
             return view;
         }
     }
@@ -625,8 +623,6 @@ public class SearchResultsSummary extends Fragment {
                 imageView.setBackgroundResource(R.drawable.empty_icon);
             }
 
-            view.setBackgroundResource(R.drawable.dashboard_tile_background);
-
             return view;
         }
     }