Fix a sporadic failure of rpl_sp.test in next-4284 tree: when doing

SELECT * FROM t1 on slave, first make sure that the slave has received
the CREATE TABLE from the master.

Author: Konstantin Osipov

mysql-test/suite/rpl/t/rpl_sp.test

@@ -668,10 +668,12 @@ connection master;
 --echo # Reaping 'insert into t1 (a) values (f1())'...
 --error ER_SP_DOES_NOT_EXIST
 --reap
-connection master1;
+connection master;
 select * from t1;
+sync_slave_with_master;
 connection slave;
 select * from  t1;
+# Cleanup
 connection master;
 drop table t1, t2;
 --error ER_SP_DOES_NOT_EXIST