Order intermediate VSIG list correct in order to correctly match existing
VSIG lists.

When overriding pre-existing TCAM entries, properly delete the existing
entry and remove it from the change/update list.
Signed-off-by: NDan Nowlin <dan.nowlin@intel.com>
Tested-by: NAndrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>