[media] rtl28xxu: stream did not start after stop on USB3.0

Stream did not start anymore after stream was stopped once.

Following error can be seen, xhci_hcd
WARN Set TR Deq Ptr cmd failed due to incorrect slot or ep state.

usb_clear_halt for streaming endpoint helps.
Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

drivers/media/usb/dvb-usb-v2/rtl28xxu.c

@@ -834,6 +834,7 @@ static int rtl28xxu_streaming_ctrl(struct dvb_frontend *fe , int onoff)
 	if (onoff) {
 		buf[0] = 0x00;
 		buf[1] = 0x00;
+		usb_clear_halt(d->udev, usb_rcvbulkpipe(d->udev, 0x81));
 	} else {
 		buf[0] = 0x10; /* stall EPA */
 		buf[1] = 0x02; /* reset EPA */