media: staging/intel-ipu3: Add Intel IPU3 meta data uAPI

These meta formats are used on Intel IPU3 ImgU video queues
to carry 3A statistics and ISP pipeline parameters.

V4L2_META_FMT_IPU3_3A
V4L2_META_FMT_IPU3_PARAMS

Signed-off-by: Yong Zhi <yong.zhi@intel.com>
Signed-off-by: Chao C Li <chao.c.li@intel.com>
Signed-off-by: Rajmohan Mani <rajmohan.mani@intel.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>