tc6393xb: non-accelerated FB support (Dmitry Baryshkov).

Signed-off-by: Dmitry Baryshkov <dbaryshkov@gmail.com>
Signed-off-by: Andrzej Zaborowski <andrew.zaborowski@intel.com>


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5617 c046a42c-6fe2-441c-8c8c-71466251a162