[media] gspca - sonixj: Fix a regression with sensor hv7131r

The bug was introduced by commit d5aa3856
removing the probe sequence of hv7131r with bridge sn9c120 and so, letting
the sensor inactive.

Signed-off-by: Jean-François Moine <moinejf@free.fr>
Cc: stable@kernel.org
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>