Bug#20816223 test fix.

Embedded server does not support restarting and needs to skip the test.

Author: Marko Mäkelä

mysql-test/suite/innodb/t/xa_recovery.test

@@ -1,4 +1,6 @@
 --source include/have_innodb.inc
+# Embedded server does not support restarting.
+--source include/not_embedded.inc
 
 CREATE TABLE t1 (a INT) ENGINE=InnoDB;
 INSERT INTO t1 VALUES (1);