MDEV-37083 fixup for PLUGIN_PERFSCHEMA=NO

Author: dr-m

mysql-test/suite/encryption/t/innochecksum.test

@@ -307,7 +307,19 @@ SELECT STRAIGHT_JOIN COUNT(t6a.a)
 FROM t6 AS t6a, t6 AS t6b
 WHERE t6a.a = t6b.a;
 
+let $no_ps=`SELECT count(*)=0 FROM information_schema.engines WHERE
+      (support = 'YES' OR support = 'DEFAULT') AND
+      engine = 'PERFORMANCE_SCHEMA'`;
+
+if ($no_ps) {
+--echo SELECT SUM(pages_hashed)>0 `1`, SUM(pages_old)>0 `1`
+--echo FROM sys.innodb_buffer_stats_by_table;
+--echo 1	1
+--echo 1	1
+}
+if (!$no_ps) {
 SELECT SUM(pages_hashed)>0 `1`, SUM(pages_old)>0 `1`
 FROM sys.innodb_buffer_stats_by_table;
+}
 
 DROP TABLE t1, t2, t3, t4, t5, t6;