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

drivers/usb/fotg210/fotg210-udc.c

@@ -1015,6 +1015,10 @@ static int fotg210_udc_start(struct usb_gadget *g,
 	/* hook up the driver */
 	driver->driver.bus = NULL;
 	fotg210->driver = driver;
+	fotg210->gadget.dev.of_node = fotg210->dev->of_node;
+	fotg210->gadget.speed = USB_SPEED_UNKNOWN;
+
+	dev_info(fotg210->dev, "bound driver %s\n", driver->driver.name);
 
 	if (!IS_ERR_OR_NULL(fotg210->phy)) {
 		ret = otg_set_peripheral(fotg210->phy->otg,
@@ -1071,6 +1075,7 @@ static int fotg210_udc_stop(struct usb_gadget *g)
 
 	fotg210_init(fotg210);
 	fotg210->driver = NULL;
+	fotg210->gadget.speed = USB_SPEED_UNKNOWN;
 
 	spin_unlock_irqrestore(&fotg210->lock, flags);