V4L/DVB (8202): gspca: PAC207 frames may be not compressed.

pac207:   Set the sizeimage to the max value for 352x288.

Signed-off-by: Hans de Goede <j.w.r.degoede@hhs.nl>
Signed-off-by: Jean-Francois Moine <moinejf@free.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>