Add missing includes.

Change-Id: I1dad32ab459c25063a70cf52100a29d00fea3a90
diff --git a/cmds/servicemanager/bctest.c b/cmds/servicemanager/bctest.c
index e02b45d..fd91633 100644
--- a/cmds/servicemanager/bctest.c
+++ b/cmds/servicemanager/bctest.c
@@ -3,6 +3,7 @@
 
 #include <stdio.h>
 #include <stdlib.h>
+#include <string.h>
 #include <errno.h>
 
 #include "binder.h"