change test function includes to use one convention
diff --git a/tests/suites/test_suite_gcm.function b/tests/suites/test_suite_gcm.function
index c30b755..2ac7628 100644
--- a/tests/suites/test_suite_gcm.function
+++ b/tests/suites/test_suite_gcm.function
@@ -1,5 +1,5 @@
 /* BEGIN_HEADER */
-#include <polarssl/gcm.h>
+#include "polarssl/gcm.h"
 /* END_HEADER */
 
 /* BEGIN_DEPENDENCIES