ARM: shmobile: armadillo800eva reference dts: Add matching LED labels

And make the node name numbering match the label numbering.
Signed-off-by: NGeert Uytterhoeven <geert+renesas@glider.be>
Cc: devicetree@vger.kernel.org
Signed-off-by: NSimon Horman <horms+renesas@verge.net.au>

arch/arm/boot/dts/r8a7740-armadillo800eva-reference.dts

@@ -104,17 +104,21 @@
 
 	leds {
 		compatible = "gpio-leds";
-		led1 {
+		led3 {
 			gpios = <&pfc 102 GPIO_ACTIVE_HIGH>;
+			label = "LED3";
 		};
-		led2 {
+		led4 {
 			gpios = <&pfc 111 GPIO_ACTIVE_HIGH>;
+			label = "LED4";
 		};
-		led3 {
+		led5 {
 			gpios = <&pfc 110 GPIO_ACTIVE_HIGH>;
+			label = "LED5";
 		};
-		led4 {
+		led6 {
 			gpios = <&pfc 177 GPIO_ACTIVE_HIGH>;
+			label = "LED6";
 		};
 	};