Revert "Remove custom layout for expandpreference."

This reverts commit 403ff14638.

Change-Id: Ia13843842d147da0ff52b0898c39393d5a113f06

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

@@ -47,6 +47,7 @@ public class ExpandPreference extends Preference {
     }
 
     private void init() {
+        setLayoutResource(R.layout.expand_preference);
         setIcon(R.drawable.ic_arrow_down_24dp);
         setTitle(R.string.advanced_section_header);
         setOrder(999);