MDEV-33341 innodb.undo_space_dblwr test case fails with Unknown Storage Engine InnoDB

- Failed to reset the innodb_fil_make_page_dirty_debug variable in
innodb_saved_page_number_debug_basic test case.

mysql-test/suite/sys_vars/r/innodb_saved_page_number_debug_basic.result

@@ -23,6 +23,7 @@ set global innodb_saved_page_number_debug = 0;
 set global innodb_fil_make_page_dirty_debug = @space_id;
 drop table t1;
 set global innodb_saved_page_number_debug = 0;
+set global innodb_fil_make_page_dirty_debug = 0;
 SELECT @@global.innodb_saved_page_number_debug;
 @@global.innodb_saved_page_number_debug
 0

mysql-test/suite/sys_vars/t/innodb_saved_page_number_debug_basic.test

@@ -30,6 +30,7 @@ set global innodb_fil_make_page_dirty_debug = @space_id;
 drop table t1;
 
 set global innodb_saved_page_number_debug = 0;
+set global innodb_fil_make_page_dirty_debug = 0;
 
 SELECT @@global.innodb_saved_page_number_debug;