arm64: tegra: Add missing #phy-cells property to USB PHYs

USB PHYs must have a #phy-cells property, so add one to the Tegra USB
PHYs which don't have one.
Signed-off-by: Thierry Reding <treding@nvidia.com>

arch/arm64/boot/dts/nvidia/tegra132.dtsi

@@ -1113,6 +1113,7 @@ phy1: usb-phy@7d000000 {
 		clock-names = "reg", "pll_u", "utmi-pads";
 		resets = <&tegra_car 22>, <&tegra_car 22>;
 		reset-names = "usb", "utmi-pads";
+		#phy-cells = <0>;
 		nvidia,hssync-start-delay = <0>;
 		nvidia,idle-wait-delay = <17>;
 		nvidia,elastic-limit = <16>;
@@ -1151,6 +1152,7 @@ phy2: usb-phy@7d004000 {
 		clock-names = "reg", "pll_u", "utmi-pads";
 		resets = <&tegra_car 58>, <&tegra_car 22>;
 		reset-names = "usb", "utmi-pads";
+		#phy-cells = <0>;
 		nvidia,hssync-start-delay = <0>;
 		nvidia,idle-wait-delay = <17>;
 		nvidia,elastic-limit = <16>;
@@ -1188,6 +1190,7 @@ phy3: usb-phy@7d008000 {
 		clock-names = "reg", "pll_u", "utmi-pads";
 		resets = <&tegra_car 59>, <&tegra_car 22>;
 		reset-names = "usb", "utmi-pads";
+		#phy-cells = <0>;
 		nvidia,hssync-start-delay = <0>;
 		nvidia,idle-wait-delay = <17>;
 		nvidia,elastic-limit = <16>;