ARM: BCM5301X: Specify USB 3.0 PHY in DT

Driver for Northstar USB 3.0 PHY has been recently added under the name
phy-bcm-ns-usb3. Add binding for it into the DT files.
The only slightly tricky part is BCM47094 which uses different PHY
version and requires different compatible value.
Signed-off-by: NRafał Miłecki <rafal@milecki.pl>
Signed-off-by: NFlorian Fainelli <f.fainelli@gmail.com>

arch/arm/boot/dts/bcm47094.dtsi

@@ -6,6 +6,12 @@
 
 #include "bcm4708.dtsi"
 
+/ {
+	usb3_phy: usb3-phy {
+		compatible = "brcm,ns-bx-usb3-phy";
+	};
+};
+
 &uart0 {
 	clock-frequency = <125000000>;
 };

arch/arm/boot/dts/bcm5301x.dtsi

@@ -149,6 +149,13 @@
 		clock-names = "phy-ref-clk";
 	};
 
+	usb3_phy: usb3-phy {
+		compatible = "brcm,ns-ax-usb3-phy";
+		reg = <0x18105000 0x1000>, <0x18003000 0x1000>;
+		reg-names = "dmp", "ccb-mii";
+		#phy-cells = <0>;
+	};
+
 	axi@18000000 {
 		compatible = "brcm,bus-axi";
 		reg = <0x18000000 0x1000>;