Verify that the V4L2M2MDevice correctly enumerates controls supported by the device. The test currently fails, and will be fixed by a subsequent patch. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Umang Jain <umang.jain@ideasonboard.com> Reviewed-by: Xavier Roumegue <xavier.roumegue@oss.nxp.com>