ARM: dts: Use labels for overriding nodes in exynos5440 boards

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/exynos5440-sd5v1.dts

@@ -27,13 +27,13 @@ xtal {
 		};
 	};
 
-	gmac: ethernet@00230000 {
-		fixed_phy;
-		phy_addr = <1>;
-	};
-
 	spi {
 		status = "disabled";
 	};
 
 };
+
+&gmac {
+	fixed_phy;
+	phy_addr = <1>;
+};

arch/arm/boot/dts/exynos5440-ssdk5440.dts

@@ -20,8 +20,25 @@ chosen {
 		bootargs = "root=/dev/sda2 rw rootwait ignore_loglevel earlyprintk no_console_suspend mem=2048M@0x80000000 mem=6144M@0x100000000 console=ttySAC0,115200";
 	};
 
-	spi_0: spi@D0000 {
+	fixed-rate-clocks {
+		xtal {
+			compatible = "samsung,clock-xtal";
+			clock-frequency = <50000000>;
+		};
+	};
+};
+
+&pcie_0 {
+	reset-gpio = <&pin_ctrl 5 0>;
+	status = "okay";
+};
+
+&pcie_1 {
+	reset-gpio = <&pin_ctrl 22 0>;
+	status = "okay";
+};
 
+&spi_0 {
 	flash: w25q128@0 {
 		#address-cells = <1>;
 		#size-cells = <1>;
@@ -57,22 +74,4 @@ partition@ae0000 {
 
 	};
 
-	};
-
-	fixed-rate-clocks {
-		xtal {
-			compatible = "samsung,clock-xtal";
-			clock-frequency = <50000000>;
-		};
-	};
-
-	pcie@290000 {
-		reset-gpio = <&pin_ctrl 5 0>;
-		status = "okay";
-	};
-
-	pcie@2a0000 {
-		reset-gpio = <&pin_ctrl 22 0>;
-		status = "okay";
-	};
 };