media: s5p-cec: use CEC_CAP_DEFAULTS

Use the new CEC_CAP_DEFAULTS define in the s5p-cec driver.

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