[media] af9035: add Avermedia Volar HD (A867R) support

Support of AVerMedia AVerTV HD Volar, with tuner MxL5007t.

Signed-off-by: Hans-Frieder Vogt <hfvogt@gmx.net>
Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>