Add missing file.

mysql-test/suite/galera/include/galera_have_debug_sync.inc

@@ -0,0 +1,9 @@
+--disable_query_log
+
+--let $galera_have_debug_sync = `SELECT 1 FROM INFORMATION_SCHEMA.GLOBAL_STATUS WHERE VARIABLE_NAME = 'wsrep_debug_sync_waiters'`
+
+--if (!$galera_have_debug_sync) {
+	--skip Test requires Galera debug library with debug_sync functionality
+}
+
+--enable_query_log