Use new include paths of libosmo-sccp 0.0.2
diff --git a/openbsc/src/nat/bsc_nat.c b/openbsc/src/nat/bsc_nat.c
index b47d7ce..0a44229 100644
--- a/openbsc/src/nat/bsc_nat.c
+++ b/openbsc/src/nat/bsc_nat.c
@@ -52,7 +52,7 @@
 #include <osmocom/vty/telnet_interface.h>
 #include <osmocom/vty/vty.h>
 
-#include <sccp/sccp.h>
+#include <osmocom/sccp/sccp.h>
 
 #include "../../bscconfig.h"