Merge branch 'no_nrf_fix' into 'develop'

avoid exit for no-nrf case

See merge request oai/cn5g/oai-cn5g-upf-vpp!11

scripts/run.sh

@@ -73,5 +73,5 @@ if [[ ${REGISTER_NRF} == "yes" ]];then
     NRF_ARGS=" --nrf_ip="$NRF_IP_ADDR" --nrf_port="$NRF_PORT" --http_version="$HTTP_VERSION
     python $NRF_APP $NRF_ARGS
 fi
-
+sleep infinity