Trebuchet: Override QuickSearchBox

* We track QuickSearchBox for EPPE, but don't want it built.

Change-Id: I3b12b6493c3a191f3dabd1d3537da403a2c38349
diff --git a/Android.bp b/Android.bp
index bdd6b43..abb05cf 100644
--- a/Android.bp
+++ b/Android.bp
@@ -176,6 +176,7 @@
     overrides: [
         "Home",
         "Launcher2",
+        "QuickSearchBox",
     ],
     required: ["privapp_whitelist_com.android.launcher3"],