[POWERPC] Replace undocumented interface properties in dts files

phy-connection-type now supersedes the interface property.

Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
diff --git a/arch/powerpc/boot/dts/mpc8568mds.dts b/arch/powerpc/boot/dts/mpc8568mds.dts
index 7361b36..948a3b6 100644
--- a/arch/powerpc/boot/dts/mpc8568mds.dts
+++ b/arch/powerpc/boot/dts/mpc8568mds.dts
@@ -288,6 +288,7 @@
 			rx-clock = <0>;
 			tx-clock = <19>;
 			phy-handle = <&qe_phy0>;
+			phy-connection-type = "gmii";
 			pio-handle = <&pio1>;
 		};
 
@@ -303,6 +304,7 @@
 			rx-clock = <0>;
 			tx-clock = <14>;
 			phy-handle = <&qe_phy1>;
+			phy-connection-type = "gmii";
 			pio-handle = <&pio2>;
 		};
 
@@ -320,28 +322,24 @@
 				interrupts = <31 1>;
 				reg = <0>;
 				device_type = "ethernet-phy";
-				interface = <6>; //ENET_1000_GMII
 			};
 			qe_phy1: ethernet-phy@01 {
 				interrupt-parent = <&mpic>;
 				interrupts = <32 1>;
 				reg = <1>;
 				device_type = "ethernet-phy";
-				interface = <6>;
 			};
 			qe_phy2: ethernet-phy@02 {
 				interrupt-parent = <&mpic>;
 				interrupts = <31 1>;
 				reg = <2>;
 				device_type = "ethernet-phy";
-				interface = <6>; //ENET_1000_GMII
 			};
 			qe_phy3: ethernet-phy@03 {
 				interrupt-parent = <&mpic>;
 				interrupts = <32 1>;
 				reg = <3>;
 				device_type = "ethernet-phy";
-				interface = <6>; //ENET_1000_GMII
 			};
 		};