ARM: dts: kirkwood: set Guruplug phy-connection-type to rgmii-id

Ethernet PHYs found on Globalscale Guruplug are connected by RGMII-ID.
Set the corresponding phy-connection-type property accordingly.
Signed-off-by: NSebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Acked-by: NAndrew Lunn <andrew@lunn.ch>
Link: https://lkml.kernel.org/r/1398862602-29595-16-git-send-email-sebastian.hesselbarth@gmail.comSigned-off-by: NJason Cooper <jason@lakedaemon.net>

arch/arm/boot/dts/kirkwood-guruplug-server-plus.dts

@@ -105,6 +105,7 @@
 		compatible = "ethernet-phy-id0141.0cb0",
 		             "ethernet-phy-ieee802.3-c22";
 		reg = <0>;
+		phy-connection-type = "rgmii-id";
 	};
 
 	ethphy1: ethernet-phy@1 {
@@ -112,6 +113,7 @@
 		compatible = "ethernet-phy-id0141.0cb0",
 		             "ethernet-phy-ieee802.3-c22";
 		reg = <1>;
+		phy-connection-type = "rgmii-id";
 	};
 };