Move hostname setting to pre.sh in suse16

hostname command is not in the initramfs

confluent_osdeploy/suse16/initramfs/var/lib/dracut/hooks/pre-trigger/01-confluent.sh

@@ -232,7 +232,6 @@ echo $ifname > /run/confluent/ifname
 dnsdomain=$(grep ^dnsdomain: /etc/confluent/confluent.deploycfg)
 dnsdomain=${dnsdomain#dnsdomain: }
 hostname=$nodename
-hostname $nodename
 if [ ! -z "$dnsdomain" ] && [ "$dnsdomain" != "null" ]; then
     hostname=$hostname.$dnsdomain
 fi

confluent_osdeploy/suse16/profiles/server/scripts/pre.sh

@@ -32,6 +32,7 @@ if [[ "$deployserver" == *":"* ]]; then
     deployserver="[$deployserver]"
 fi
 source /etc/confluent/functions
+hostname $(grep ^NODENAME: /etc/confluent/confluent.info|awk '{print $2}')
 run_remote_parts pre.d
 sed -i s!%%DEPLOYER%%!$deployserver!g /tmp/autoinstall.json
 sed -i s!%%PROFILE%%!$(grep ^profile: /etc/confluent/confluent.deploycfg|awk '{print $2}')!g /tmp/autoinstall.json