powerpc/83xx: Add gpio to MPC837x RDB

Signed-off-by: Philippe Reynes <philippe.reynes@isismpp.fr>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>

arch/powerpc/boot/dts/mpc8379_rdb.dts

@@ -107,6 +107,24 @@
 			reg = <0x200 0x100>;
 		};
 
+		gpio1: gpio-controller@c00 {
+			#gpio-cells = <2>;
+			compatible = "fsl,mpc8379-gpio", "fsl,mpc8349-gpio";
+			reg = <0xc00 0x100>;
+			interrupts = <74 0x8>;
+			interrupt-parent = <&ipic>;
+			gpio-controller;
+		};
+
+		gpio2: gpio-controller@d00 {
+			#gpio-cells = <2>;
+			compatible = "fsl,mpc8379-gpio", "fsl,mpc8349-gpio";
+			reg = <0xd00 0x100>;
+			interrupts = <75 0x8>;
+			interrupt-parent = <&ipic>;
+			gpio-controller;
+		};
+
 		i2c@3000 {
 			#address-cells = <1>;
 			#size-cells = <0>;