config: make remote_node_timeout configurable

The logic for customizing the remote_node_timeout config option was
missing. The default value of 10 could not be altered by a user.

Add the required logic and a short explanation of the config-option to
the default configuration.

Signed-off-by: David Bauer <mail@david-bauer.net>

openwrt/usteer/files/etc/config/usteer

@@ -44,6 +44,9 @@ config usteer
 	# Interval (ms) between sending state updates to other APs
 	#option remote_update_interval 1000
 
+	# Number of remote update intervals after which a remote-node is deleted
+	#option remote_node_timeout 10
+
 	# Allow rejecting assoc requests for steering purposes (0/1)
 	#option assoc_steering 0
 

openwrt/usteer/files/etc/init.d/usteer

@@ -77,7 +77,7 @@ uci_usteer() {
 		sta_block_timeout local_sta_timeout local_sta_update \
 		max_neighbor_reports max_retry_band seen_policy_timeout \
 		load_balancing_threshold band_steering_threshold \
-		remote_update_interval \
+		remote_update_interval remote_node_timeout\
 		min_connect_snr min_snr signal_diff_threshold \
 		initial_connect_delay roam_process_timeout\
 		roam_kick_delay roam_scan_tries \

ubus.c

@@ -152,6 +152,7 @@ struct cfg_item {
 	_cfg(U32, load_balancing_threshold), \
 	_cfg(U32, band_steering_threshold), \
 	_cfg(U32, remote_update_interval), \
+	_cfg(U32, remote_node_timeout), \
 	_cfg(BOOL, assoc_steering), \
 	_cfg(I32, min_connect_snr), \
 	_cfg(I32, min_snr), \