ARM: dts: Use labels for overriding nodes in exynos4412-tiny4412

Usage of labels instead of full paths reduces possible mistakes when
overriding nodes.
Signed-off-by: Krzysztof Kozlowski <k.kozlowski.k@gmail.com>
Signed-off-by: Kukjin Kim <kgene@kernel.org>

arch/arm/boot/dts/exynos4412-tiny4412.dts

@@ -56,42 +56,42 @@ led4 {
 		};
 	};
 
-	rtc@10070000 {
-		status = "okay";
+	fixed-rate-clocks {
+		xxti {
+			compatible = "samsung,clock-xxti";
+			clock-frequency = <0>;
+		};
+
+		xusbxti {
+			compatible = "samsung,clock-xusbxti";
+			clock-frequency = <24000000>;
+		};
 	};
+};
 
-	sdhci@12530000 {
+&rtc {
+	status = "okay";
+};
+
+&sdhci_2 {
 	bus-width = <4>;
 	pinctrl-0 = <&sd2_clk &sd2_cmd &sd2_cd &sd2_bus4>;
 	pinctrl-names = "default";
 	status = "okay";
-	};
+};
 
-	serial@13800000 {
+&serial_0 {
 	status = "okay";
-	};
+};
 
-	serial@13810000 {
+&serial_1 {
 	status = "okay";
-	};
+};
 
-	serial@13820000 {
+&serial_2 {
 	status = "okay";
-	};
+};
 
-	serial@13830000 {
+&serial_3 {
 	status = "okay";
-	};
-
-	fixed-rate-clocks {
-		xxti {
-			compatible = "samsung,clock-xxti";
-			clock-frequency = <0>;
-		};
-
-		xusbxti {
-			compatible = "samsung,clock-xusbxti";
-			clock-frequency = <24000000>;
-		};
-	};
 };