usb: fotg210-udc: Assign of_node and speed on start

Follow the example set by other drivers to assign of_node
and speed to the driver when binding, also print bound
info akin to other UDC drivers.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20230103-gemini-fotg210-usb-v2-6-100388af9810@linaro.org


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