ARM: dts: bcm2835-rpi-zero: Enable OTG mode

Since 635c21068cf ("usb: dwc2: gadget: Fix WARN_ON messages
during FIFO init") the dwc2 driver is able to handle OTG and gadget
mode for bcm2835. So enable this feature for the Raspberry Pi Zero.
Signed-off-by: NStefan Wahren <stefan.wahren@i2se.com>
Signed-off-by: NEric Anholt <eric@anholt.net>

arch/arm/boot/dts/bcm2835-rpi-zero.dts

@@ -12,7 +12,7 @@
 /dts-v1/;
 #include "bcm2835.dtsi"
 #include "bcm2835-rpi.dtsi"
-#include "bcm283x-rpi-usb-host.dtsi"
+#include "bcm283x-rpi-usb-otg.dtsi"
 
 / {
 	compatible = "raspberrypi,model-zero", "brcm,bcm2835";