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

[Paul Mackerras]

Grant Likely writes:

> The MDIO node in the lite5200b.dts file needs to also claim compatibility
> with the older mpc5200 chip.
> 
> Signed-off-by: Grant Likely <grant.likely at secretlab.ca>
> ---
> Paul, this one should also go in for .26

OK, I'll put it in the powerpc-next branch.  Or did you mean it should
go in .25?

Paul.