usb:gadget:f_thor: Allocate request up to THOR_PACKET_SIZE not ep->maxpacket

Now it is possible to allocate static request - which receives data from
the host (OUT transaction) to the size of THOR packet.

Signed-off-by: Lukasz Majewski <l.majewski@samsung.com>
Cc: Marek Vasut <marex@denx.de>

drivers/usb/gadget/f_thor.c

@@ -614,7 +614,7 @@ static struct usb_request *thor_start_ep(struct usb_ep *ep)
 {
 	struct usb_request *req;
 
-	req = alloc_ep_req(ep, ep->maxpacket);
+	req = alloc_ep_req(ep, THOR_PACKET_SIZE);
 	debug("%s: ep:%p req:%p\n", __func__, ep, req);
 
 	if (!req)