#128 [PHP][Manual]Modify the predefined constants about the return value of cubrid_move_cursor

[Jira Trac]

In [Predefined Constants|http://www.php.net/manual/en/cubrid.constants.php], the predefined constants CUBRID_CURSOR_SUCCESS, CUBRID_CURSOR_NO_MORE_DATA and CUBRID_CURSOR_ERROR have been removed in 8.4.1, so we should point them out in the manual.