ARM: kirkwood: SBx81LIFKW: remove direct access of GPIO registers

Replace code that accessed the GPIO registers directly with code that
makes use of the LED_GPIO driver.

Signed-off-by: Chris Packham <judge.packham@gmail.com>
Reviewed-by: Stefan Roese <sr@denx.de>
diff --git a/arch/arm/dts/kirkwood-atl-sbx81lifkw.dts b/arch/arm/dts/kirkwood-atl-sbx81lifkw.dts
index 4ae74f4..3837c8f 100644
--- a/arch/arm/dts/kirkwood-atl-sbx81lifkw.dts
+++ b/arch/arm/dts/kirkwood-atl-sbx81lifkw.dts
@@ -70,6 +70,20 @@
 			};
 		};
 	};
+
+	gpio-leds {
+		compatible = "gpio-leds";
+
+		ledn {
+			label = "status:ledn";
+			gpios = <&gpio0 10 GPIO_ACTIVE_HIGH>;
+		};
+
+		ledp {
+			label = "status:ledp";
+			gpios = <&gpio0 18 GPIO_ACTIVE_HIGH>;
+		};
+	};
 };
 
 &spi0 {