Dynamically determine size of customize tray.

Change-Id: I13235bbd01df8c31eb9bdfe88913db55624d8b9b
diff --git a/res/layout-large/launcher.xml b/res/layout-large/launcher.xml
index 6a16eb5..2d14137 100644
--- a/res/layout-large/launcher.xml
+++ b/res/layout-large/launcher.xml
@@ -44,7 +44,7 @@
     <include layout="@layout/customization_drawer"
         android:id="@+id/customization_drawer"
         android:layout_width="match_parent"
-        android:layout_height="@dimen/customization_drawer_height"
+        android:layout_height="wrap_content"
         android:layout_gravity="bottom"
         android:visibility="invisible" />
 </com.android.launcher2.DragLayer>