local-node: periodically send link-measurement requests

Send link-measurement requests to every supporting local-sta in order to
acquire information to assess the link-quality bi-directional.

The link-measurement request is sent each configurable interval. It can
be disabled by configuring the interval to 0.

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

main.c

@@ -102,6 +102,8 @@ void usteer_init_defaults(void)
 	config.band_steering_interval = 120000;
 	config.band_steering_min_snr = -60;
 
+	config.link_measurement_interval = 30000;
+
 	config.roam_kick_delay = 10000;
 	config.roam_process_timeout = 5 * 1000;
 	config.roam_scan_tries = 3;