The MDIO node in the lite5200b.dts file needs to also claim compatibility
with the older mpc5200 chip.  Otherwise the driver won't find the device.
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Paul Mackerras <paulus@samba.org>
                mdio@3000 {
                        #address-cells = <1>;
                        #size-cells = <0>;
-                       compatible = "fsl,mpc5200b-mdio";
+                       compatible = "fsl,mpc5200b-mdio", "fsl,mpc5200-mdio";
                        reg = <3000 400>;       // fec range, since we need to setup fec interrupts
                        interrupts = <2 5 0>;   // these are for "mii command finished", not link changes & co.
                        interrupt-parent = <&mpc5200_pic>;