Tweaked 6847 video behaviour to be like a real Atom
Tweaked 6847 video behaviour to be like a real Atom

Change-Id: Ie7ccf4729681805f896291be89fcdfd625049a67

hoglet67/AtomFpga,wsoltys/AtomFpga,hoglet67/AtomFpga,wsoltys/AtomFpga,hoglet67/AtomFpga,wsoltys/AtomFpga