Hack to wait for both suggestion/category to load

- This is unfortunately necessary to avoid a jank when category
  load completes before suggestion load, in which case user has to
  manually scroll up to see the suggestions.
- We could technically just add scrollTo(0), but that causes the list
  scroll on its own within 0.5 second of settings start, and that's bad.

Change-Id: I8dc869a69a5bf11bbf7644b281cc1778dd1a90e8
Fixes: 69068691
Test: visual
Test: robotests

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

@@ -161,7 +161,6 @@ public class DashboardAdapter extends RecyclerView.Adapter<DashboardAdapter.Dash
     }
 
     public void setSuggestionsV2(List<Suggestion> data) {
-        // TODO: Tint icon
         final DashboardData prevData = mDashboardData;
         mDashboardData = new DashboardData.Builder(prevData)
                 .setSuggestionsV2(data)