[POWERPC] mpc8349: Add linux,network-index to ethernet nodes in device tree

cuImage needs to know the logical index of the ethernet devices in order
to assign mac addresses.  This adds the needed properties.
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Acked-by: David Gibson <david@gibson.dropbear.id.au>
CC: Scott Wood <scottwood@freescale.com>
CC: Kumar Gala <galak@kernel.crashing.org>
CC: Timur Tabi <timur@freescale.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>

arch/powerpc/boot/dts/mpc8349emitx.dts

@@ -139,6 +139,7 @@ ethernet@24000 {
 			interrupts = <20 8 21 8 22 8>;
 			interrupt-parent = < &ipic >;
 			phy-handle = < &phy1c >;
+			linux,network-index = <0>;
 		};
 
 		ethernet@25000 {
@@ -158,6 +159,7 @@ ethernet@25000 {
 			interrupts = <23 8 24 8 25 8>;
 			interrupt-parent = < &ipic >;
 			phy-handle = < &phy1f >;
+			linux,network-index = <1>;
 		};
 
 		serial@4500 {

arch/powerpc/boot/dts/mpc8349emitxgp.dts

@@ -114,6 +114,7 @@ ethernet@24000 {
 			interrupts = <20 8 21 8 22 8>;
 			interrupt-parent = < &ipic >;
 			phy-handle = < &phy1c >;
+			linux,network-index = <0>;
 		};
 
 		serial@4500 {

arch/powerpc/boot/dts/mpc834x_mds.dts

@@ -144,6 +144,7 @@ ethernet@24000 {
 			interrupts = <20 8 21 8 22 8>;
 			interrupt-parent = < &ipic >;
 			phy-handle = < &phy0 >;
+			linux,network-index = <0>;
 		};
 
 		ethernet@25000 {
@@ -163,6 +164,7 @@ ethernet@25000 {
 			interrupts = <23 8 24 8 25 8>;
 			interrupt-parent = < &ipic >;
 			phy-handle = < &phy1 >;
+			linux,network-index = <1>;
 		};
 
 		serial@4500 {