ARM: dts: sun6i: Enable otg controller on the cs908

The cs908 has the otg controller connected to one of the 2 usb-A
receptacles it has on the front, so enable the otg controller in host-only
mode.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>

arch/arm/boot/dts/sun6i-a31s-cs908.dts

@@ -93,6 +93,11 @@ &uart0 {
 	status = "okay";
 };
 
+&usb_otg {
+	dr_mode = "host";
+	status = "okay";
+};
+
 &usbphy {
 	status = "okay";
 };