media: adv*/vivid/pulse8/rainshadow: cec: use CEC_CAP_DEFAULTS

Use the new CEC_CAP_DEFAULTS define in the adv, vivid, pulse8 and
rainshadow CEC drivers.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>