powerpc/83xx: Update ranges in gianfar node to match other dts

The gianfar@25000 node was missing its ranges prop for the mdio bus
and provided an explicit ranges property on gianfar@24000 to match
change from commit:

commit 70b3adbba056f5d9081f1ec9b4a629e3c7502072
Author: Anton Vorontsov <avorontsov@ru.mvista.com>
Date:   Thu Mar 19 21:01:45 2009 +0300

    powerpc/83xx: Move gianfar mdio nodes under the ethernet nodes

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>

arch/powerpc/boot/dts/mpc8313erdb.dts

@@ -180,7 +180,7 @@
 			#address-cells = <1>;
 			#size-cells = <1>;
 			sleep = <&pmc 0x20000000>;
-			ranges;
+			ranges = <0x0 0x24000 0x1000>;
 
 			cell-index = <0>;
 			device_type = "network";
@@ -195,11 +195,11 @@
 			fixed-link = <1 1 1000 0 0>;
 			fsl,magic-packet;
 
-			mdio@24520 {
+			mdio@520 {
 				#address-cells = <1>;
 				#size-cells = <0>;
 				compatible = "fsl,gianfar-mdio";
-				reg = <0x24520 0x20>;
+				reg = <0x520 0x20>;
 				phy4: ethernet-phy@4 {
 					interrupt-parent = <&ipic>;
 					interrupts = <20 0x8>;
@@ -221,6 +221,7 @@
 			model = "eTSEC";
 			compatible = "gianfar";
 			reg = <0x25000 0x1000>;
+			ranges = <0x0 0x25000 0x1000>;
 			local-mac-address = [ 00 00 00 00 00 00 ];
 			interrupts = <34 0x8 33 0x8 32 0x8>;
 			interrupt-parent = <&ipic>;
@@ -229,11 +230,11 @@
 			sleep = <&pmc 0x10000000>;
 			fsl,magic-packet;
 
-			mdio@25520 {
+			mdio@520 {
 				#address-cells = <1>;
 				#size-cells = <0>;
 				compatible = "fsl,gianfar-tbi";
-				reg = <0x25520 0x20>;
+				reg = <0x520 0x20>;
 
 				tbi1: tbi-phy@11 {
 					reg = <0x11>;