linux-phytec-fsl

[media] videobuf2-core.c: update module description

This module is no longer V4L2 specific, so update the module description
accordingly.

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