V4L/DVB (3425): Correct gpio values for Aver 303 Studio in v4l-dvb tree

Old values generally works in A2 mono, but new ones allows:
- detect and use Nicam stereo
- mute in tv
- use radio FM

Signed-off-by: Marcin Rudowski <mar_rud@poczta.onet.pl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>