lpcmanager

SVGHMI: Add SuppressBrowserOutput, expected by SVGHMI python3 code in Beremiz.
pthread_mutex_lock(&UART_WakeCondLock);
UART_task_active = 0;
pthread_cond_signal(&UART_WakeCond);
pthread_mutex_unlock(&UART_WakeCondLock);
pthread_join(UART_task, NULL);
closeserial(UART_fd);