ogn-rf.service: Execute ogn-rf as root

The gpu support on the raspberry pi requires access to /dev/vcio and
/dev/kmem, thus ogn-rf needs to be run as root.

scripts/ogn-rf.service

@@ -3,7 +3,7 @@ Description=Receive ogn/flarm data and write the raw data to a fifo
 After=network.target time-sync.target
 
 [Service]
-User=ogn
+User=root
 ExecStart=/usr/bin/ogn-rf /etc/rtlsdr-ogn.conf
 Restart=on-failure