[gpprs] Add VTY node for SGSN
diff --git a/openbsc/src/vty/command.c b/openbsc/src/vty/command.c
index 62144ee..67e6804 100644
--- a/openbsc/src/vty/command.c
+++ b/openbsc/src/vty/command.c
@@ -2364,6 +2364,7 @@
 		break;
 	case MGCP_NODE:
 	case GBPROXY_NODE:
+	case SGSN_NODE:
 		vty->node = CONFIG_NODE;
 		vty->index = NULL;
 	default: