[sccp] Make the file includable outside of OpenBSC
diff --git a/openbsc/tests/sccp/sccp_test.c b/openbsc/tests/sccp/sccp_test.c
index 37615e0..91a8085 100644
--- a/openbsc/tests/sccp/sccp_test.c
+++ b/openbsc/tests/sccp/sccp_test.c
@@ -26,9 +26,11 @@
 
 #include <arpa/inet.h>
 
-#include <sccp/sccp.h>
 #include <openbsc/gsm_data.h>
 #include <openbsc/debug.h>
+#include <openbsc/msgb.h>
+
+#include <sccp/sccp.h>
 
 #define MIN(x, y) ((x) < (y) ? (x) : (y))