update conf/readme for testing SMF locally

build/scripts/smf_conf_local.sh

+# prompt has been removed for easier Ctrl+C Ctrl+V
+sudo ifconfig eno1:un4 172.55.55.102 up # SMF N4 interface
+sudo ifconfig eno1:sn4 172.55.55.101 up # SMF N4 interface
+
+sudo ifconfig eno1:an11 172.16.1.102 up # AMF N11 interface
+sudo ifconfig eno1:sn11 172.16.1.101 up # SMF N11 interface
+#for N10
+sudo ifconfig eno1:un10 192.168.200.1 up  # UDM N10 interface 
+sudo ifconfig eno1:sn10 192.168.200.168 up  # SMF N10 interface 
+
+INSTANCE=1
+PREFIX='/usr/local/etc/oai'
+sudo mkdir -m 0777 -p $PREFIX
+cp ../../etc/smf.conf  $PREFIX
+
+declare -A SMF_CONF
+
+SMF_CONF[@INSTANCE@]=$INSTANCE
+SMF_CONF[@PREFIX@]=$PREFIX
+SMF_CONF[@PID_DIRECTORY@]='/var/run'
+SMF_CONF[@SMF_INTERFACE_NAME_FOR_N4@]='eno1:sn4'
+SMF_CONF[@SMF_INTERFACE_NAME_FOR_N11@]='eno1:sn11'
+SMF_CONF[@SMF_INTERFACE_IPV4_ADDRESS_FOR_N11@]='172.16.1.101'
+SMF_CONF[@SMF_INTERFACE_PORT_FOR_N11@]='80'
+
+
+SMF_CONF[@UDM_IPV4_ADDRESS@]='192.168.200.1'
+SMF_CONF[@UDM_PORT@]='8181'
+
+SMF_CONF[@AMF_IPV4_ADDRESS@]='172.16.1.102'
+SMF_CONF[@AMF_PORT@]='8282'
+
+
+SMF_CONF[@DEFAULT_DNS_IPV4_ADDRESS@]='8.8.8.8'
+SMF_CONF[@DEFAULT_DNS_SEC_IPV4_ADDRESS@]='4.4.4.4'
+
+for K in "${!SMF_CONF[@]}"; do 
+  egrep -lRZ "$K" $PREFIX | xargs -0 -l sed -i -e "s|$K|${SMF_CONF[$K]}|g"
+  ret=$?;[[ ret -ne 0 ]] && echo "Tried to replace $K with ${SMF_CONF[$K]}"
+done