V4L/DVB (12420): saa7134: fix the radio on Avermedia GO 007 FM

We have support for radio on saa7133/35/31e cards with tda8290/8275(a)
and 5.5MHz ceramic filter on the bridge chips since a while.

It was previously not tested, if this card supports it too, but the old
"ghost" radio with wrong filters doesn't work anymore.

Thanks go to Pham Thanh Nam and Laszlo Kustan for reporting it working
on that input.

Signed-off-by: hermann pitton <hermann-pitton@arcor.de>
Signed-off-by: Douglas Schilling Landgraf <dougsland@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>