batman-adv: increase BLA wait periods to 6

If networks take a long time to come up, e.g. due to lossy links, then
the bridge loop avoidance wait time to suppress broadcasts may not wait
long enough and detect a backbone before the mesh is brought up.
Increasing the wait period further to 60 seconds makes this scenario
less likely.
Signed-off-by: Simon Wunderlich <simon@open-mesh.com>
Signed-off-by: Marek Lindner <mareklindner@neomailbox.ch>
Signed-off-by: Antonio Quartulli <a@unstable.cc>

net/batman-adv/main.h

@@ -109,7 +109,7 @@
 #define BATADV_MAX_AGGREGATION_MS 100
 
 #define BATADV_BLA_PERIOD_LENGTH	10000	/* 10 seconds */
-#define BATADV_BLA_BACKBONE_TIMEOUT	(BATADV_BLA_PERIOD_LENGTH * 3)
+#define BATADV_BLA_BACKBONE_TIMEOUT	(BATADV_BLA_PERIOD_LENGTH * 6)
 #define BATADV_BLA_CLAIM_TIMEOUT	(BATADV_BLA_PERIOD_LENGTH * 10)
 #define BATADV_BLA_WAIT_PERIODS		3