MDEV-15807: Test failure on galera.galera_lock_table

Wait until create tables are replicated to the slave before trying
lock table.

mysql-test/suite/galera/disabled.def

@@ -31,7 +31,6 @@ galera_var_retry_autocommit : MDEV-15794 Test failure on galera.galera_var_retry
 galera_var_auto_inc_control_on : MDEV-15803 Test failure on galera.galera_var_auto_inc_control_on
 pxc-421 : MDEV-15804 Test failure on galera.pxc-421
 query_cache : MDEV-15805 Test failure on galera.query_cache
-galera.galera_lock_table : MDEV-15807
 galera.galera_gra_log : MDEV-15808 Test failure on galera.galera_gra_log
 galera.MW-44 : MDEV-15809 Test failure on galera.MW-44
 galera.lp1376747 : MDEV-15810 Test failure on galera.lp1376747

mysql-test/suite/galera/r/galera_lock_table.result

 CREATE TABLE t1 (id INT PRIMARY KEY) ENGINE=InnoDB;
 CREATE TABLE t2 (id INT PRIMARY KEY) ENGINE=InnoDB;
+SELECT NAME FROM INFORMATION_SCHEMA.INNODB_SYS_TABLES WHERE NAME LIKE 'test/t%';
+NAME
+test/t1
+test/t2
 LOCK TABLE t1 READ;
 INSERT INTO t1 VALUES (1);
 INSERT INTO t2 VALUES (1);

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

@@ -12,6 +12,13 @@ CREATE TABLE t1 (id INT PRIMARY KEY) ENGINE=InnoDB;
 CREATE TABLE t2 (id INT PRIMARY KEY) ENGINE=InnoDB;
 
 --connection node_2
+
+# Wait until above DDL's are replicated
+--let $wait_condition = SELECT COUNT(*) = 2 FROM INFORMATION_SCHEMA.INNODB_SYS_TABLES WHERE NAME LIKE 'test/t%';
+--source include/wait_condition.inc
+
+SELECT NAME FROM INFORMATION_SCHEMA.INNODB_SYS_TABLES WHERE NAME LIKE 'test/t%';
+
 LOCK TABLE t1 READ;
 
 --connection node_1