usb: gadget: bdc: fix typo in comment

Spelling mistake (triple letters) in comment.
Detected with the help of Coccinelle.

Acked-by: Florian Fainelli <[e-mail]>
Signed-off-by: Julia Lawall <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Greg Kroah-Hartman <[e-mail]>

drivers/usb/gadget/udc/bdc/bdc_cmd.c

···
 	 * his will reset the seq number for non EP0.
 	 */
 	if (epnum != 1) {
-		/* if the endpoint it not stallled */
+		/* if the endpoint it not stalled */
 		if (!(ep->flags & BDC_EP_STALL)) {
 			ret = bdc_ep_set_stall(bdc, epnum);
 			if (ret)