ARM: dts: exynos: Add missing unit name to memory nodes in Exynos4 DTS

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: Krzysztof Kozlowski <krzk@kernel.org>
diff --git a/arch/arm/boot/dts/exynos4412-trats2.dts b/arch/arm/boot/dts/exynos4412-trats2.dts
index e1380ba..41ecd6d 100644
--- a/arch/arm/boot/dts/exynos4412-trats2.dts
+++ b/arch/arm/boot/dts/exynos4412-trats2.dts
@@ -30,7 +30,7 @@
 		i2c12 = &i2c_max77693_fuel;
 	};
 
-	memory {
+	memory@40000000 {
 		device_type = "memory";
 		reg =  <0x40000000 0x40000000>;
 	};