media: imx.rst: Provide a real example for the output format

In the i.MX6Q sabreauto pipeline example, it is better to provide
a real example for the output format, so do it just like in the
previous lines for consistency.

Signed-off-by: Fabio Estevam <festevam@gmail.com>
Acked-by: Steve Longerbeam <slongerbeam@gmail.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>