InnoDB: Fix compilation errors on IA-64 Windows

innobase/include/srv0srv.h:
  Declare srv_auto_extend_increment and srv_max_purge_lag as ulong,
  because ulint and ulong are of different size on Win64.
innobase/srv/srv0srv.c:
  Declare srv_auto_extend_increment and srv_max_purge_lag as ulong,
  because ulint and ulong are of different size on Win64.

innobase/include/srv0srv.h

@@ -50,7 +50,7 @@ extern ulint*   srv_data_file_is_raw_partition;
 
 extern ibool	srv_auto_extend_last_data_file;
 extern ulint	srv_last_file_size_max;
-extern ulint	srv_auto_extend_increment;
+extern ulong	srv_auto_extend_increment;
 
 extern ibool	srv_created_new_raw;
 
@@ -101,7 +101,7 @@ extern ibool	srv_use_doublewrite_buf;
 extern ibool    srv_set_thread_priorities;
 extern int      srv_query_thread_priority;
 
-extern ulint	srv_max_purge_lag;
+extern ulong	srv_max_purge_lag;
 /*-------------------------------------------*/
 
 extern ulint	srv_n_rows_inserted;

innobase/srv/srv0srv.c

@@ -86,7 +86,7 @@ ulint	srv_last_file_size_max	= 0;		 /* if != 0, this tells
 						 the max size auto-extending
 						 may increase the last data
 						 file size */
-ulint	srv_auto_extend_increment = 8;		 /* If the last data file is
+ulong	srv_auto_extend_increment = 8;		 /* If the last data file is
 						 auto-extended, we add this
 						 many pages to it at a time */
 ulint*  srv_data_file_is_raw_partition = NULL;
@@ -849,7 +849,7 @@ srv_general_init(void)
 /*======================= InnoDB Server FIFO queue =======================*/
 
 /* Maximum allowable purge history length.  <=0 means 'infinite'. */
-ulint	srv_max_purge_lag		= 0;
+ulong	srv_max_purge_lag		= 0;
 
 /*************************************************************************
 Puts an OS thread to wait if there are too many concurrent threads