powerpc/5200: mpc5200b.dtsi: add spi node address- and size-cells properties

Both, #address-cells and #size-cells properties are required
for spi bus node, so add them.
Signed-off-by: Anatolij Gustschin <agust@denx.de>

arch/powerpc/boot/dts/mpc5200b.dtsi

@@ -147,6 +147,8 @@ gpio_wkup: gpio@c00 {
 		};
 
 		spi@f00 {
+			#address-cells = <1>;
+			#size-cells = <0>;
 			compatible = "fsl,mpc5200b-spi","fsl,mpc5200-spi";
 			reg = <0xf00 0x20>;
 			interrupts = <2 13 0 2 14 0>;