Revert "ODROID-C5: memory: Delete memory node in dts"

This reverts commit e9a460fa91c8ce5ce3df05a8e1d149e56cc114cc.

Change-Id: I3f10ea25adbc62475dacf1d7d79bdf97726eae1e
diff --git a/arch/arm64/boot/dts/amlogic/s7d_s905x5m_odroidc5.dts b/arch/arm64/boot/dts/amlogic/s7d_s905x5m_odroidc5.dts
index 751a8f6..f275546 100644
--- a/arch/arm64/boot/dts/amlogic/s7d_s905x5m_odroidc5.dts
+++ b/arch/arm64/boot/dts/amlogic/s7d_s905x5m_odroidc5.dts
@@ -38,6 +38,11 @@
 		tsensor0 = &p_tsensor;
 	};
 
+	memory@00000000 {
+		device_type = "memory";
+		linux,usable-memory = <0x0 0x0 0x0 0x80000000>;
+	};
+
 	reserved-memory {
 		#address-cells = <2>;
 		#size-cells = <2>;