fix typo in location flags settings

- cflags must be used when saving branch flags
(cherry picked from commit 7a967915ce71ab4e8b6577b4ed48e2a93ae6e96f)

modules_k/registrar/save.c

@@ -280,7 +280,7 @@ static inline ucontact_info_t* pack_ci( struct sip_msg* _m, contact_t* _c,
 
 		/* set flags */
 		ci.flags  = _f;
-		getbflagsval(0, &ci.flags);
+		getbflagsval(0, &ci.cflags);
 
 		/* get received */
 		if (path_received.len && path_received.s) {