[media] technisat-sub2: Fix stream curruption on high bitrate

Fix stream curruption on high bitrate (>60mbit).
Signed-off-by: Evgeny Plehov <EvgenyPlehov@ukr.net>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

drivers/media/usb/dvb-usb/technisat-usb2.c

@@ -710,7 +710,7 @@ static struct dvb_usb_device_properties technisat_usb2_devices = {
 					.isoc = {
 						.framesperurb = 32,
 						.framesize = 2048,
-						.interval = 3,
+						.interval = 1,
 					}
 				}
 			},