V4L/DVB (13303): gspca - sonixj: Change sensor and om6802 exchanges.

- the sensors are now initialized sooner
- om6802:
  . set some parameters in factory mode
  . lack of some parameters
  . gpio adjustments

Signed-off-by: Jean-Francois Moine <moinejf@free.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>