Rename include directory to mbedtls
diff --git a/tests/suites/test_suite_arc4.function b/tests/suites/test_suite_arc4.function
index dc7b24b..6bc5d1f 100644
--- a/tests/suites/test_suite_arc4.function
+++ b/tests/suites/test_suite_arc4.function
@@ -1,5 +1,5 @@
 /* BEGIN_HEADER */
-#include "polarssl/arc4.h"
+#include "mbedtls/arc4.h"
 /* END_HEADER */
 
 /* BEGIN_DEPENDENCIES