arm: kirkwood: NETGEAR ReadyNAS Duo v2 init PCIe via DT
Now that the mvebu-pcie driver is in place and enabled for kirkwood,
convert to initializing PCIe via devicetree.
Signed-off-by: Arnaud Ebalard <arno@natisbad.org>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>