[POWERPC] mpc5200: Fix incorrect compatible string for the mdio node

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>
1 file changed