ARM: dts: sun5i: Enable otg on the mk802

Enable the otg controller, the id pin is not connected so enable
it in peripheral 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/sun5i-a10s-mk802.dts

@@ -87,6 +87,10 @@
 	status = "okay";
 };
 
+&otg_sram {
+	status = "okay";
+};
+
 &pio {
 	led_pins_mk802: led_pins@0 {
 		allwinner,pins = "PB2";
@@ -122,6 +126,11 @@
 	status = "okay";
 };
 
+&usb_otg {
+	dr_mode = "peripheral";
+	status = "okay";
+};
+
 &usbphy {
 	usb1_vbus-supply = <&reg_usb1_vbus>;
 	status = "okay";