lpcmanager

Fix bug when disconnect also thread is closed.

2017-01-25, agregorcic
1bac76edff11
Fix bug when disconnect also thread is closed.
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);