Limit Pan config sol timeout after 5 solication.

Change-Id: I445b3142acc9e3159d5e457e0cfff9ebc8a7895e

Author: Juha Heiskanen

source/6LoWPAN/ws/ws_bootstrap.c

@@ -2662,7 +2662,7 @@ void ws_bootstrap_trickle_timer(protocol_interface_info_entry_t *cur, uint16_t t
     if (cur->ws_info->trickle_pcs_running &&
             trickle_timer(&cur->ws_info->trickle_pan_config_solicit, &cur->ws_info->trickle_params_pan_discovery, ticks)) {
         // send PAN Configuration solicit
-        if (cur->ws_info->pas_requests > PCS_MAX) {
+        if (cur->ws_info->pas_requests >= PCS_MAX) {
             // if MAX PCS sent restart discovery
 
             // Remove network keys from MAC