MDEV-8761 encryption.innodb-bad-key-change2 fails with static file_key_management plugin

Suppress errors about not being able to load plugins from file_key_management library.
Errors about the non-existing library are already suppressed globally.

mysql-test/suite/encryption/r/innodb-bad-key-change2.result

@@ -3,6 +3,7 @@ call mtr.add_suppression("InnoDB: However key management plugin or used key_id 1
 call mtr.add_suppression("InnoDB: Marking tablespace as missing. You may drop this table or install correct key management plugin and key file.");
 call mtr.add_suppression(".*InnoDB: Cannot open table test/.* from the internal data dictionary of InnoDB though the .frm file for the table exists. See .* for how you can resolve the problem.");
 call mtr.add_suppression("InnoDB: .ibd file is missing for table test/.*");
+call mtr.add_suppression("Couldn't load plugins from 'file_key_management*");
 CREATE TABLE t1 (pk INT PRIMARY KEY, f VARCHAR(8)) ENGINE=InnoDB ENCRYPTION_KEY_ID=4;
 INSERT INTO t1 VALUES (1,'foo'),(2,'bar');
 select * from t1;

mysql-test/suite/encryption/t/innodb-bad-key-change2.test

@@ -12,6 +12,8 @@ call mtr.add_suppression("InnoDB: However key management plugin or used key_id 1
 call mtr.add_suppression("InnoDB: Marking tablespace as missing. You may drop this table or install correct key management plugin and key file.");
 call mtr.add_suppression(".*InnoDB: Cannot open table test/.* from the internal data dictionary of InnoDB though the .frm file for the table exists. See .* for how you can resolve the problem.");
 call mtr.add_suppression("InnoDB: .ibd file is missing for table test/.*");
+# Suppression for builds where file_key_management plugin is linked statically
+call mtr.add_suppression("Couldn't load plugins from 'file_key_management*");
 
 --exec echo "wait" > $MYSQLTEST_VARDIR/tmp/mysqld.1.expect
 --shutdown_server