[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>
Merge remote-tracking branch 'origin/master' into latest