ARM: dts: vf610-zii-dev-rev-b: add PHYs for switch2

Switch 2 has an 88e1545 PHY behind it, which is a quad PHY.  Only the
first three PHYs are used, the remaining PHY is unused.  When we wire
up the SFF sockets in a later commit, the omission of this causes the
fourth PHY to be used for port 3.  Specifying the PHYs in DT avoids
the auto-probing of the bus, and discovery of this PHY.
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

arch/arm/boot/dts/vf610-zii-dev-rev-b.dts

@@ -255,16 +255,19 @@ ports {
 					port@0 {
 						reg = <0>;
 						label = "lan6";
+						phy-handle = <&switch2phy0>;
 					};
 
 					port@1 {
 						reg = <1>;
 						label = "lan7";
+						phy-handle = <&switch2phy1>;
 					};
 
 					port@2 {
 						reg = <2>;
 						label = "lan8";
+						phy-handle = <&switch2phy2>;
 					};
 
 					port@3 {
@@ -304,6 +307,20 @@ fixed-link {
 						};
 					};
 				};
+				mdio {
+					#address-cells = <1>;
+					#size-cells = <0>;
+
+					switch2phy0: phy@0 {
+						reg = <0>;
+					};
+					switch2phy1: phy@1 {
+						reg = <1>;
+					};
+					switch2phy2: phy@2 {
+						reg = <2>;
+					};
+				};
 			};
 		};