Comment # 3 on bug 38873 from Ville Syrjala

Presuming the shadows are fixed by:

commit 40a08e0d6a57cc79ee72a62aeedec20cae774ed5
Author: Ville Syrjälä <ville.syrjala@linux.intel.com>
Date:   Thu Aug 7 11:14:35 2014 +0300

    i915: Use L8A8 instead of I8 to simulate A8 on gen2