fotg210-udc: Call usb_gadget_udc_reset

Notify the UDC core that a bus reset occurred.

Signed-off-by: Fabian Vogt <fabian@ritter-vogt.de>
Link: https://lore.kernel.org/r/20210324141115.9384-6-fabian@ritter-vogt.de


Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>