[nrf toup] [nrfconnect] Added log for the WiFi connection failure

This might help when debugging the WiFi connection failures.

Signed-off-by: Marcin Kajor <marcin.kajor@nordicsemi.no>

src/platform/nrfconnect/wifi/WiFiManager.cpp

@@ -76,9 +76,9 @@ NetworkCommissioning::WiFiScanResponse ToScanResponse(const wifi_scan_result * r
         // TODO: Distinguish WPA versions
         response.security.Set(result->security == WIFI_SECURITY_TYPE_PSK ? NetworkCommissioning::WiFiSecurity::kWpaPersonal
                                                                          : NetworkCommissioning::WiFiSecurity::kUnencrypted);
-        response.channel = result->channel;
-        response.rssi    = result->rssi;
-        response.ssidLen = result->ssid_length;
+        response.channel  = result->channel;
+        response.rssi     = result->rssi;
+        response.ssidLen  = result->ssid_length;
         response.wiFiBand = ConvertBandEnum(result->band);
         memcpy(response.ssid, result->ssid, result->ssid_length);
         // TODO: MAC/BSSID is not filled by the Wi-Fi driver
@@ -500,6 +500,8 @@ void WiFiManager::ConnectHandler(Platform::UniquePtr<uint8_t> data, size_t lengt
                 }
 
                 delegate->OnAssociationFailureDetected(associationFailureCause, reason);
+
+                ChipLogError(DeviceLayer, "WiFi connection failure. Cause: %d, reason: %d", associationFailureCause, reason);
             }
         }
         else // The connection has been established successfully.