Add nodeSelctor to omasim

Also, change "conf" to "config" for consistency with omec charts.

Change-Id: I6db9a4d51a131292df1c78b65ed7306d1748388c
diff --git a/oaisim/templates/bin/_enb-init.sh.tpl b/oaisim/templates/bin/_enb-init.sh.tpl
index 7852f5b..f5e6f05 100644
--- a/oaisim/templates/bin/_enb-init.sh.tpl
+++ b/oaisim/templates/bin/_enb-init.sh.tpl
@@ -18,11 +18,11 @@
 
 cp /opt/oaisim/enb/config/nfapi.conf /etc/oaisim/enb/nfapi.conf
 
-S1_MME_IFACE={{ .Values.conf.enb.networks.s1_mme.interface }}
+S1_MME_IFACE={{ .Values.config.enb.networks.s1_mme.interface }}
 S1_MME_IP=$(ip addr show $S1_MME_IFACE | grep inet | grep -v inet6 | awk '{print $2}' | cut -d'/' -f1)
 sed -i "s/S1_MME_IP_ADDRESS/\"$S1_MME_IP\"/g" /etc/oaisim/enb/nfapi.conf
 
-S1U_IFACE={{ .Values.conf.enb.networks.s1u.interface }}
+S1U_IFACE={{ .Values.config.enb.networks.s1u.interface }}
 S1U_IP=$(ip addr show $S1U_IFACE | grep inet | grep -v inet6 | awk '{print $2}' | cut -d'/' -f1)
 sed -i "s/S1U_IP_ADDRESS/\"$S1U_IP\"/g" /etc/oaisim/enb/nfapi.conf
 sed -i "s/X2C_IP_ADDRESS/\"$ENB_LOCAL_IP\"/g" /etc/oaisim/enb/nfapi.conf