title: Icon is not set on submenu
body: <p>I had made a sub menu in android and I wanted to add icon on sub-menu but it does not display.
  I have written the following snippet of code:</p>
  
  <pre><code>    int base = Menu.FIRST;
  
      SubMenu sm = menu.addSubMenu(base, base + 1, Menu.NONE, "submenu");
      MenuItem item1 = sm.add(base, base + 2, base + 2, "sub item1");
  
      sm.add(base, base + 3, base + 3, "sub item2").setIcon(R.drawable.block_user);
      sm.add(base, base + 4, base + 4, "sub item3").setIcon(R.drawable.extendedaway);
      item1.setIcon(R.drawable.away);
      sm.setIcon(R.drawable.chaty); 
  </code></pre>