[media] stb0899: Removed an extra byte sent at init on DiSEqC bus

I noticed a stray 0x00 at init on DiSEqC bus (KNC1 DVB-S2) with a DiSEqC
tool analyzer.

I removed the register from initialization table and all seem to go well
(at least for my KNC board).

Signed-off-by: Florent Audebert <florent.audebert@anevia.com>
Acked-by: Manu Abraham <manu@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>