EXYNOS5: FDT: Add serial device node values

This patch adds the device node required for serial driver

Signed-off-by: Abhilash Kesavan <a.kesavan@samsung.com>
Signed-off-by: Rajeshwari Shinde <rajeshwari.s@samsung.com>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>

arch/arm/dts/exynos5250.dtsi

@@ -202,4 +202,31 @@
 		interrupts = <0 78 0>;
 	};
 
+	serial@12C00000 {
+		compatible = "samsung,exynos4210-uart";
+		reg = <0x12C00000 0x100>;
+		interrupts = <0 51 0>;
+		id = <0>;
+	};
+
+	serial@12C10000 {
+		compatible = "samsung,exynos4210-uart";
+		reg = <0x12C10000 0x100>;
+		interrupts = <0 52 0>;
+		id = <1>;
+	};
+
+	serial@12C20000 {
+		compatible = "samsung,exynos4210-uart";
+		reg = <0x12C20000 0x100>;
+		interrupts = <0 53 0>;
+		id = <2>;
+	};
+
+	serial@12C30000 {
+		compatible = "samsung,exynos4210-uart";
+		reg = <0x12C30000 0x100>;
+		interrupts = <0 54 0>;
+		id = <3>;
+	};
 };

board/samsung/dts/exynos5250-smdk5250.dts

@@ -34,6 +34,8 @@
 		mmc1 = "/mmc@12210000";
 		mmc2 = "/mmc@12220000";
 		mmc3 = "/mmc@12230000";
+		serial0 = "/serial@12C30000";
+		console = "/serial@12C30000";
 	};
 
 	sromc@12250000 {

board/samsung/dts/exynos5250-snow.dts

@@ -34,6 +34,8 @@
 		mmc1 = "/mmc@12210000";
 		mmc2 = "/mmc@12220000";
 		mmc3 = "/mmc@12230000";
+		serial0 = "/serial@12C30000";
+		console = "/serial@12C30000";
 	};
 
 	sound@12d60000 {