Rename bscconfig.h -> config.h

Change-Id: I007103be34c1aaab7a9375c44b226d4590fe5b24
diff --git a/src/gtphub/gtphub_main.c b/src/gtphub/gtphub_main.c
index 0f389ab..4d1e9cf 100644
--- a/src/gtphub/gtphub_main.c
+++ b/src/gtphub/gtphub_main.c
@@ -44,7 +44,7 @@
 #include <osmocom/gtphub/gtphub.h>
 #include <osmocom/sgsn/vty.h>
 
-#include "../../bscconfig.h"
+#include "../../config.h"
 
 #if BUILD_IU
 #include <osmocom/sigtran/osmo_ss7.h>