The webcam 0ac8:303b may have the sensors HV7131B or HV7131R(c).
This changeset checks the HV7131 type.
Signed-off-by: NJean-Francois Moine <moinejf@free.fr>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>