xlat: update V4L2_CID_* constants

xlat: update V4L2_CID_* constants

Synchronise v4l2_control_ids list with the one provided by kernel's
include/uapi/linux/v4l2-controls.h.  A few notes:
 - V4L2_CID_CHROMA_GAIN and V4L2_CID_COLORFX_CBCR moved in accordance
   with their position/values.
 - V4L2_CID_WHITENESS is removed as it has the same value as
   V4L2_CID_GAMMA.
 - V4L2_CID_PRIVATE_BASE is removed.
 - V4L2_CID_HCENTER and V4L2_CID_VCENTER that were removed by Linux
   commit v3.9-rc1~93^2~237, are retained for historical reasons.

* xlat/v4l2_control_ids.in: Update.