Tweak the comb filter config when in s-video mode to match the Hauppauge
Windows driver values (based on register dumps).

This work was sponsored by GetWellNetwork Inc.
Signed-off-by: Devin Heitmueller <dheitmueller@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>