ARM: dts: omap5: Add missing unit name to memory nodes

This patch fixes the following DTC warnings:

"Node /memory has a reg or ranges property, but no unit name"
Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

arch/arm/boot/dts/omap5-cm-t54.dts

@@ -11,7 +11,7 @@ / {
 	model = "CompuLab CM-T54";
 	compatible = "compulab,omap5-cm-t54", "ti,omap5";
 
-	memory {
+	memory@80000000 {
 		device_type = "memory";
 		reg = <0x80000000 0x7F000000>; /* 2048 MB */
 	};

arch/arm/boot/dts/omap5-igep0050.dts

@@ -13,7 +13,7 @@ / {
 	model = "IGEPv5";
 	compatible = "isee,omap5-igep0050", "ti,omap5";
 
-	memory {
+	memory@80000000 {
 		device_type = "memory";
 		reg = <0x80000000 0x7f000000>; /* 2032 MB */
 	};

arch/arm/boot/dts/omap5-uevm.dts

@@ -13,7 +13,7 @@ / {
 	model = "TI OMAP5 uEVM board";
 	compatible = "ti,omap5-uevm", "ti,omap5";
 
-	memory {
+	memory@80000000 {
 		device_type = "memory";
 		reg = <0x80000000 0x7F000000>; /* 2032 MB */
 	};