V4L/DVB (3383): Move tda988x options into tuner_params struct.

- Tda988x parameters should be defined per tuner_param_type,
for each tuner_params array member.

Signed-off-by: Michael Krufky <mkrufky@m1k.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>