ARM: mvebu: Fix AXP-WiFi-AP DT for MBUS DT binding

The ranges property needs to be changed to use the new MBus DT binding.
Also, the pcie-controller node needs to be relocated as according the MBus
DT binding, it's now a child of the mbus-compatible node.

Signed-off-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>