[media] coda: do not enumerate YUYV if VDOA is not available

TRY_FMT already disables the YUYV format if the VDOA is not available.
ENUM_FMT must do the same.

Fixes: d40e98c1 ("[media] coda: support YUYV output if VDOA is used")

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Reviewed-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>