split libgb into a separate library for outside use
This also removes the dependency to osmo_sock() inside libcommon and
replaces it with osmo_sock_* from libosmocore
diff --git a/openbsc/src/gprs/sgsn_vty.c b/openbsc/src/gprs/sgsn_vty.c
index 0125dad..f4a8083 100644
--- a/openbsc/src/gprs/sgsn_vty.c
+++ b/openbsc/src/gprs/sgsn_vty.c
@@ -28,7 +28,7 @@
#include <openbsc/debug.h>
#include <openbsc/sgsn.h>
-#include <openbsc/gprs_ns.h>
+#include <osmocom/gprs/gprs_ns.h>
#include <openbsc/gprs_sgsn.h>
#include <openbsc/vty.h>
#include <openbsc/gsm_04_08_gprs.h>