lpcmanager

Added support for short uart Smarteh buffer (26bytes, 19200kbps). Buffer length and baudrate are initialised from Composer. Added control of CAN1 & CAN2 enable pin: When PLC app is started both drivers are enabled and then disabled when PLC app is stopped.
rt_task_delete(&UART_task);
rt_task_join(&UART_task);
closeserial(UART_fd);
gpio_close(RS485_GPIO_dev);
rt_mutex_delete(&UART_WriteMutex);
rt_mutex_delete(&UART_ReadMutex);