Set scheduler priorty to 1

To match emane.

Checked with:
```
ps ax -o pid,class,priority,comm |grep RR
```

openair2/PHY_INTERFACE/queue.c

@@ -150,4 +150,4 @@ void *unqueue_matching(queue_t *q, queue_matcher_t *matcher, void *wanted)
 
     pthread_mutex_unlock(&q->mutex);
     return item;
-}
+}