V4L/DVB (10798): Add CIMax(R) SP2 Common Interface code for NetUP Dual DVB-S2 CI card

Add CIMax2 Common Interface code for NetUP Dual DVB-S2 CI card.
SmarDTV CIMax(R) SP2 is Dual CableCARD, DVB Common Interface
and OpenCable Hardware Controller.

Signed-off-by: Abylay Ospan <aospan@netup.ru>
Signed-off-by: Igor M. Liplianin <liplianin@netup.ru>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>