ARM: dts: s3c2416: Add labels to S3C2416 nodes

Add new labels to certain nodes on S3C2416 so they could be easily
referenced by board DTS files.
Signed-off-by: Krzysztof Kozlowski <k.kozlowski.k@gmail.com>
Signed-off-by: Kukjin Kim <kgene@kernel.org>

arch/arm/boot/dts/s3c2416.dtsi

@@ -17,7 +17,7 @@ / {
 	compatible = "samsung,s3c2416";
 
 	aliases {
-		serial3 = &uart3;
+		serial3 = &uart_3;
 	};
 
 	cpus {
@@ -48,7 +48,7 @@ timer@51000000 {
 		clock-names = "timers";
 	};
 
-	serial@50000000 {
+	uart_0: serial@50000000 {
 		compatible = "samsung,s3c2440-uart";
 		clock-names = "uart", "clk_uart_baud2",
 				"clk_uart_baud3";
@@ -56,7 +56,7 @@ serial@50000000 {
 				<&clocks SCLK_UART>;
 	};
 
-	serial@50004000 {
+	uart_1: serial@50004000 {
 		compatible = "samsung,s3c2440-uart";
 		clock-names = "uart", "clk_uart_baud2",
 				"clk_uart_baud3";
@@ -64,7 +64,7 @@ serial@50004000 {
 				<&clocks SCLK_UART>;
 	};
 
-	serial@50008000 {
+	uart_2: serial@50008000 {
 		compatible = "samsung,s3c2440-uart";
 		clock-names = "uart", "clk_uart_baud2",
 				"clk_uart_baud3";
@@ -72,7 +72,7 @@ serial@50008000 {
 				<&clocks SCLK_UART>;
 	};
 
-	uart3: serial@5000C000 {
+	uart_3: serial@5000C000 {
 		compatible = "samsung,s3c2440-uart";
 		reg = <0x5000C000 0x4000>;
 		interrupts = <1 18 24 4>, <1 18 25 4>;
@@ -83,7 +83,7 @@ uart3: serial@5000C000 {
 		status = "disabled";
 	};
 
-	sdhci@4AC00000 {
+	sdhci_1: sdhci@4AC00000 {
 		compatible = "samsung,s3c6410-sdhci";
 		reg = <0x4AC00000 0x100>;
 		interrupts = <0 0 21 3>;
@@ -94,7 +94,7 @@ sdhci@4AC00000 {
 		status = "disabled";
 	};
 
-	sdhci@4A800000 {
+	sdhci_0: sdhci@4A800000 {
 		compatible = "samsung,s3c6410-sdhci";
 		reg = <0x4A800000 0x100>;
 		interrupts = <0 0 20 3>;
@@ -105,13 +105,13 @@ sdhci@4A800000 {
 		status = "disabled";
 	};
 
-	watchdog@53000000 {
+	watchdog: watchdog@53000000 {
 		interrupts = <1 9 27 3>;
 		clocks = <&clocks PCLK_WDT>;
 		clock-names = "watchdog";
 	};
 
-	rtc@57000000 {
+	rtc: rtc@57000000 {
 		compatible = "samsung,s3c2416-rtc";
 		clocks = <&clocks PCLK_RTC>;
 		clock-names = "rtc";