gprs_ns2_fr: Print Frame Relay 'role' in VTY

Change-Id: I23182e5d952fd28a0bbfa76a4fc94d8e03b7a65d
diff --git a/src/gb/gprs_ns2_fr.c b/src/gb/gprs_ns2_fr.c
index 3315273..07c8d46 100644
--- a/src/gb/gprs_ns2_fr.c
+++ b/src/gb/gprs_ns2_fr.c
@@ -105,13 +105,16 @@
 {
 	struct priv_bind *priv;
 	struct gprs_ns2_vc *nsvc;
+	struct osmo_fr_link *fr_link;
 
 	if (!bind)
 		return;
 
 	priv = bind->priv;
+	fr_link = priv->link;
 
-	vty_out(vty, "FR bind: %s%s", priv->netif, VTY_NEWLINE);
+	vty_out(vty, "FR bind: %s, role: %s%s", priv->netif,
+		osmo_fr_role_str(fr_link->role), VTY_NEWLINE);
 
 	llist_for_each_entry(nsvc, &bind->nsvc, blist) {
 		vty_out(vty, "    %s%s", gprs_ns2_ll_str(nsvc), VTY_NEWLINE);