[media] doc-rst: reformat cec-api.rst

Use the same format as the other parts.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
This commit is contained in:
Mauro Carvalho Chehab 2016-07-08 18:03:02 -03:00
commit e972d3c87f