ARM: dts: dra76-evm: Add VBUS GPIO to USB1/USB2 extcon

The board has USB VBUS detection available over GPIO. Plug it to
extcon node of USB1 and USB2 ports.

Signed-off-by: Roger Quadros <[e-mail]>
Signed-off-by: Tony Lindgren <[e-mail]>

arch/arm/boot/dts/dra76-evm.dts

···
 	phys = <&pcie1_phy>, <&pcie2_phy>;
 	phy-names = "pcie-phy0", "pcie-phy1";
 };
+
+&extcon_usb1 {
+	vbus-gpio = <&pcf_lcd 14 GPIO_ACTIVE_HIGH>;
+};
+
+&extcon_usb2 {
+	vbus-gpio = <&pcf_lcd 15 GPIO_ACTIVE_HIGH>;
+};