WebClient.webclient_recv - Finishing chunked message hotfix

[mikexmas]

Sorry my bad for chunked messages.
Last chunk of chunked messages is "0\r\n", this is correct handled, but we have to set OK flag in receiver state machine to proper free request.
So please add:
request->response_state = WEBCLIENT_RESP_STATE_OK
in line 454
Complete lines:

    // Check if header && not chunked
    if (request->response_state == WEBCLIENT_RESP_STATE_WAITCHUNK) {
        if ((char *)os_strstr(pData, "0\r\n") == pData) {
            request->response_state = WEBCLIENT_RESP_STATE_OK;
            is_close_conn = true;
        }
    } else {

Best regards