DICT_COL_GET_SPATIAL_STATUS()

Problem:
=======
   Patch of bug#21514135 resets ord_part of column to
zero if it is not a part of any index. Basically it is
a wrong assert that col->ord_part will be always
non-zero in dict_col_get_spatial_status().

Fix:
===
   If the column is not a part of any index then
return spatial column status as SPATIAL_NONE.

Reviewed-by: Shaohua <Wang&lt;shaohua.wang@oracle.com>
Reviewed-by: Jimmy <yang&lt;jimmy.yang@oracle.com>
RB: 10458