Another dlt-dameon recreate fifo file before exit error

https://github.com/COVESA/dlt-daemon/blob/a4105dde8871582eaa6d7182db9afa9c2bea54ac/src/daemon/dlt-daemon.c#L1580

```c
static int dlt_daemon_init_fifo(DltDaemonLocal *daemon_local)
{
int ret;
int fd = -1;
int fifo_size;

/* open named pipe(FIFO) to receive DLT messages from users */
umask(0);

/* Try to delete existing pipe, ignore result of unlink */
const char *tmpFifo = daemon_local->flags.daemonFifoName;
unlink(tmpFifo);

ret = mkfifo(tmpFifo, S_IRUSR | S_IWUSR | S_IWGRP);
```
if a dlt-daemon is running, and someone else startup another dlt-daemon again, and it will exit error because of binding ip/port confilct.
But this dlt-daemon will recreate FIFO file, and the first daemon cannot receive any message from FIFO because the old file is deleted