mwan3: add locking debug possibility

Signed-off-by: Florian Eckert <fe@dev.tdt.de>

net/mwan3/files/etc/hotplug.d/iface/15-mwan3

@@ -16,11 +16,11 @@ config_load mwan3
 config_get_bool enabled globals 'enabled' '0'
 [ ${enabled} -gt 0 ] || exit 0
 
-mwan3_lock
+mwan3_lock "$ACTION" "$INTERFACE"
 mwan3_init
 mwan3_set_connected_iptables
 mwan3_set_custom_ipset
-mwan3_unlock
+mwan3_unlock "$ACTION" "$INTERFACE"
 
 config_get enabled $INTERFACE enabled 0
 config_get initial_state $INTERFACE initial_state "online"
@@ -58,7 +58,7 @@ else
 	running=1
 fi
 
-mwan3_lock
+mwan3_lock "$ACTION" "$INTERFACE"
 $LOG notice "Execute "$ACTION" event on interface $INTERFACE (${DEVICE:-unknown})"
 
 case "$ACTION" in
@@ -91,6 +91,6 @@ case "$ACTION" in
 	;;
 esac
 
-mwan3_unlock
+mwan3_unlock "$ACTION" "$INTERFACE"
 
 exit 0