85xxCDS: Enable the VIA PCI-to-ISA bridge.

Author: Randy Vinson <rvinson@linuxbox.(none)>

Enable the PCI-to-ISA bridge in the VIA Southbridge located on the
Arcadia main board.

Signed-off-by: Randy Vinson <rvinson@mvista.com>
Signed-off-by: York Sun <yorksun@freescale.com>