This patch adds meatadata capture support in vivid driver.
Adds new files for metadata capture.
Adds vivid controls to generate PTS and SCR for metadata stream.
also fixes v4l2-compliance issues seen on metadata device.
Signed-off-by: Vandana BN <bnvandana@gmail.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>