MDEV-21773: added missing include file to mtr tests

mysql-test/suite/galera/t/galera_as_slave_gtid.inc

@@ -8,6 +8,7 @@
 #
 
 --source include/have_innodb.inc
+--source include/have_log_bin.inc
 --source include/galera_cluster.inc
 
 # As node #3 is not a Galera node, and galera_cluster.inc does not open connetion to it

mysql-test/suite/galera/t/galera_as_slave_gtid_auto_engine.cnf

@@ -5,4 +5,4 @@ log-bin=mysqld-bin
 log-slave-updates
 binlog-format=ROW
 
-gtid_pos_auto_engines=InnoDB
\ No newline at end of file
+gtid_pos_auto_engines=InnoDB

mysql-test/suite/galera/t/galera_as_slave_gtid_auto_engine.test

@@ -11,4 +11,4 @@
 
 --connection node_2
 DROP TABLE mysql.gtid_slave_pos_InnoDB;
-CALL mtr.add_suppression("The automatically created table");
\ No newline at end of file
+CALL mtr.add_suppression("The automatically created table");