ARM: dts: mmp2: fix the SPI nodes

The SPI bus has a single address cell and not size cells.

Also, dtc thinks the SPI nodes are preferrably called "spi" and it is
right to think so.
Signed-off-by: Lubomir Rintel <lkundrak@v3.sk>
Acked-by: Pavel Machek <pavel@ucw.cz>

arch/arm/boot/dts/mmp2.dtsi

@@ -346,35 +346,43 @@ rtc: rtc@d4010000 {
 				status = "disabled";
 			};
 
-			ssp1: ssp@d4035000 {
+			ssp1: spi@d4035000 {
 				compatible = "marvell,mmp2-ssp";
 				reg = <0xd4035000 0x1000>;
 				clocks = <&soc_clocks MMP2_CLK_SSP0>;
 				interrupts = <0>;
+				#address-cells = <1>;
+				#size-cells = <0>;
 				status = "disabled";
 			};
 
-			ssp2: ssp@d4036000 {
+			ssp2: spi@d4036000 {
 				compatible = "marvell,mmp2-ssp";
 				reg = <0xd4036000 0x1000>;
 				clocks = <&soc_clocks MMP2_CLK_SSP1>;
 				interrupts = <1>;
+				#address-cells = <1>;
+				#size-cells = <0>;
 				status = "disabled";
 			};
 
-			ssp3: ssp@d4037000 {
+			ssp3: spi@d4037000 {
 				compatible = "marvell,mmp2-ssp";
 				reg = <0xd4037000 0x1000>;
 				clocks = <&soc_clocks MMP2_CLK_SSP2>;
 				interrupts = <20>;
+				#address-cells = <1>;
+				#size-cells = <0>;
 				status = "disabled";
 			};
 
-			ssp4: ssp@d4039000 {
+			ssp4: spi@d4039000 {
 				compatible = "marvell,mmp2-ssp";
 				reg = <0xd4039000 0x1000>;
 				clocks = <&soc_clocks MMP2_CLK_SSP3>;
 				interrupts = <21>;
+				#address-cells = <1>;
+				#size-cells = <0>;
 				status = "disabled";
 			};
 		};