lpcmanager

LPCBus' OnBoard and RightBus are now using headers from i2c_apf28_rtdm. Match 1fa3e3670c4e
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);