ARM: dts: update ifc node name to be memory-controller

Update the node name to be align with latest binding.
Signed-off-by: Li Yang <leoyang.li@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

arch/arm/boot/dts/ls1021a.dtsi

@@ -122,7 +122,7 @@ msi2: msi-controller@1570e08 {
 			interrupts = <GIC_SPI 180 IRQ_TYPE_LEVEL_HIGH>;
 		};
 
-		ifc: ifc@1530000 {
+		ifc: memory-controller@1530000 {
 			compatible = "fsl,ifc";
 			reg = <0x0 0x1530000 0x0 0x10000>;
 			interrupts = <GIC_SPI 75 IRQ_TYPE_LEVEL_HIGH>;