Setup the USB controller and configure it to operate in host mode.
Additionally add the USB phy node for the ZYBO, including reset gpio
which is connected to a external MIO pin.
Signed-off-by: Nathan Rossi <nathan@nathanrossi.com> Cc: Rob Herring <robh+dt@kernel.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Sören Brinkmann <soren.brinkmann@xilinx.com> Signed-off-by: Michal Simek <michal.simek@xilinx.com>