Fix the build after MDEV-17803

Use the same data type 'ulong' to avoid type mismatch on Windows
and on 32-bit systems.

FIXME: The correct data type should probably be 64-bit.

sql/log_event.cc

 /*
    Copyright (c) 2000, 2018, Oracle and/or its affiliates.
-   Copyright (c) 2009, 2018, MariaDB
+   Copyright (c) 2009, 2019, MariaDB
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
@@ -12093,8 +12093,8 @@ int Table_map_log_event::do_apply_event(rpl_group_info *rgi)
   table_list->updating= 1;
   table_list->required_type= FRMTYPE_TABLE;
 
-  DBUG_PRINT("debug", ("table: %s is mapped to %u", table_list->table_name, 
-                                                    table_list->table_id));
+  DBUG_PRINT("debug", ("table: %s is mapped to %lu", table_list->table_name,
+                       table_list->table_id));
   table_list->master_had_triggers= ((m_flags & TM_BIT_HAS_TRIGGERS_F) ? 1 : 0);
   DBUG_PRINT("debug", ("table->master_had_triggers=%d", 
                        (int)table_list->master_had_triggers));

sql/table.h

 #ifndef TABLE_INCLUDED
 #define TABLE_INCLUDED
 /* Copyright (c) 2000, 2017, Oracle and/or its affiliates.
-   Copyright (c) 2009, 2018, MariaDB
+   Copyright (c) 2009, 2019, MariaDB
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
@@ -1892,7 +1892,7 @@ struct TABLE_LIST
   /* Index names in a "... JOIN ... USE/IGNORE INDEX ..." clause. */
   List<Index_hint> *index_hints;
   TABLE        *table;                          /* opened table */
-  ulonglong          table_id; /* table id (from binlog) for opened table */
+  ulong         table_id; /* table id (from binlog) for opened table */
   /*
     select_result for derived table to pass it from table creation to table
     filling procedure