arm: mvebu: dts: Armada8k enable mdio

Since mvpp2 is using the new mdio driver and the cp110 has been
synced with the linux upstream, the mdio has to enabled in the
device tree file.
This is missing for some device tree files and therefore the
network cards do not come online.

Signed-off-by: Sven Auhagen <sven.auhagen@voleatech.de>
Reviewed-by: Stefan Roese <sr@denx.de>
diff --git a/arch/arm/dts/armada-7040-db.dts b/arch/arm/dts/armada-7040-db.dts
index b158f92..9104042 100644
--- a/arch/arm/dts/armada-7040-db.dts
+++ b/arch/arm/dts/armada-7040-db.dts
@@ -175,6 +175,7 @@
 };
 
 &cp0_mdio {
+	status = "okay";
 	phy0: ethernet-phy@0 {
 		reg = <0>;
 	};
diff --git a/arch/arm/dts/armada-8040-clearfog-gt-8k.dts b/arch/arm/dts/armada-8040-clearfog-gt-8k.dts
index 6a586db..79ee871 100644
--- a/arch/arm/dts/armada-8040-clearfog-gt-8k.dts
+++ b/arch/arm/dts/armada-8040-clearfog-gt-8k.dts
@@ -295,6 +295,7 @@
 };
 
 &cp1_mdio {
+	status = "okay";
 	phy0: ethernet-phy@0 {
 		reg = <0>;
 	};
diff --git a/arch/arm/dts/armada-8040-db.dts b/arch/arm/dts/armada-8040-db.dts
index 51c2f23..2686e00 100644
--- a/arch/arm/dts/armada-8040-db.dts
+++ b/arch/arm/dts/armada-8040-db.dts
@@ -270,6 +270,7 @@
 };
 
 &cp0_mdio {
+	status = "okay";
 	phy1: ethernet-phy@1 {
 		reg = <1>;
 	};
diff --git a/arch/arm/dts/armada-8040-mcbin.dts b/arch/arm/dts/armada-8040-mcbin.dts
index 2184648..b0bed77 100644
--- a/arch/arm/dts/armada-8040-mcbin.dts
+++ b/arch/arm/dts/armada-8040-mcbin.dts
@@ -155,6 +155,7 @@
 };
 
 &cp0_mdio {
+	status = "okay";
 	ge_phy: ethernet-phy@0 {
 		reg = <0>;
 	};