ARM: dts: stm32: enable USB HS on stm32f769-disco

This patch enables USB HS on stm32f749-disco in OTG (DRD) mode.
The USB connector used will determine the role of USB OTG controller.
Signed-off-by: Amelie Delaunay <amelie.delaunay@st.com>
Signed-off-by: Alexandre Torgue <alexandre.torgue@st.com>

arch/arm/boot/dts/stm32f769-disco.dts

@@ -85,6 +85,13 @@ button@0 {
 			gpios = <&gpioa 0 GPIO_ACTIVE_HIGH>;
 		};
 	};
+
+	usbotg_hs_phy: usb-phy {
+		#phy-cells = <0>;
+		compatible = "usb-nop-xceiv";
+		clocks = <&rcc 0 STM32F7_AHB1_CLOCK(OTGHSULPI)>;
+		clock-names = "main_clk";
+	};
 };
 
 &cec {
@@ -102,3 +109,12 @@ &usart1 {
 	pinctrl-names = "default";
 	status = "okay";
 };
+
+&usbotg_hs {
+	dr_mode = "otg";
+	phys = <&usbotg_hs_phy>;
+	phy-names = "usb2-phy";
+	pinctrl-0 = <&usbotg_hs_pins_a>;
+	pinctrl-names = "default";
+	status = "okay";
+};