ARM: dts: vf610-zii-dev-rev-b: change switch2 label

Rename the switch2@0 label of the switch2 node to switch@0 to respect
the general unit@address DTS rule, and be consistent with the other
switch nodes of the DTS file.
Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

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

@@ -239,7 +239,7 @@ mdio_mux_4: mdio@4 {
 			#size-cells = <0>;
 			reg = <4>;
 
-			switch2: switch2@0 {
+			switch2: switch@0 {
 				compatible = "marvell,mv88e6085";
 				#address-cells = <1>;
 				#size-cells = <0>;