media: ivsc: csi: remove privacy status in struct mei_csi

media: ivsc: csi: remove privacy status in struct mei_csi

The privacy status is maintained by privacy_ctrl, on which all
of the privacy status changes will go through, so there is no
point in maintaining one more element any more.

Reported-by: Hao Yao <hao.yao@intel.com>
Signed-off-by: Wentong Wu <wentong.wu@intel.com>
Tested-by: Jason Chen <jason.z.chen@intel.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>