With the DT binding updated with 501be7cece ("dt-bindings:
memory-controller: Define fallback compatible") we need to define a
proper compatible string for the memory controller node(s).
Signed-off-by: Florian Fainelli <florian.fainelli@broadcom.com>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>