ARM: dts: imx6ul-ccimx6ulsom: Add memory node to board dts

Add memory node to board dts.

This is done in preparation of removing the memory node from imx6ul.dtsi.
Signed-off-by: Fabio Estevam <festevam@gmail.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

arch/arm/boot/dts/imx6ul-ccimx6ulsom.dtsi

@@ -7,6 +7,11 @@
  */
 
 / {
+	memory@80000000 {
+		device_type = "memory";
+		reg = <0x80000000 0>; /* will be filled by U-Boot */
+	};
+
 	reserved-memory {
 		#address-cells = <1>;
 		#size-cells = <1>;