[media] cx231xx: enable the analog tuner at buffer setup
[media] cx231xx: enable the analog tuner at buffer setup

buf_prepare callback is called for every queued buffer. This is
an overkill. Call it at buf_setup, as this should be enough.

Acked-by: Hans Verkuil <3a513708f73c27e7d36ebc496aa41dad6a3153ea@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <ad86ba2154032c9f55743a190faa2459a9d61d42@osg.samsung.com>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs