arm64: dts: Fix the base address of the Broadcom iProc mdio mux

Modify the base address of the mdio mux driver to point to the
start of the mdio mux block's register address space.
Signed-off-by: Arun Parameswaran <arun.parameswaran@broadcom.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

arch/arm64/boot/dts/broadcom/northstar2/ns2.dtsi

@@ -482,9 +482,9 @@ pwm: pwm@66010000 {
 			status = "disabled";
 		};
 
-		mdio_mux_iproc: mdio-mux@6602023c {
+		mdio_mux_iproc: mdio-mux@66020000 {
 			compatible = "brcm,mdio-mux-iproc";
-			reg = <0x6602023c 0x14>;
+			reg = <0x66020000 0x250>;
 			#address-cells = <1>;
 			#size-cells = <0>;
 

arch/arm64/boot/dts/broadcom/stingray/stingray.dtsi

@@ -278,9 +278,9 @@ hsls {
 
 		#include "stingray-pinctrl.dtsi"
 
-		mdio_mux_iproc: mdio-mux@2023c {
+		mdio_mux_iproc: mdio-mux@20000 {
 			compatible = "brcm,mdio-mux-iproc";
-			reg = <0x0002023c 0x14>;
+			reg = <0x00020000 0x250>;
 			#address-cells = <1>;
 			#size-cells = <0>;