network: Add stub for network_info_has_hidden

src/network.c

@@ -1244,3 +1244,8 @@ void network_info_foreach(network_info_foreach_func_t function,
 	for (entry = l_queue_get_entries(networks); entry; entry = entry->next)
 		function(entry->data, user_data);
 }
+
+bool network_info_has_hidden(void)
+{
+	return false;
+}

src/network.h

@@ -79,3 +79,4 @@ bool network_info_add_known(const char *ssid, enum security security);
 bool network_info_forget_known(const char *ssid, enum security security);
 void network_info_foreach(network_info_foreach_func_t function,
 				void *user_data);
+bool network_info_has_hidden(void);