deployment: set eth1 of sp2 to actual configuration, try to update ngcpcfg of sp1 when sp2 is deployed

Boot option ngcpcpip2 might differ from default, so we can't hardcode
$DEFAULT_IP2 when deploying sp1. Instead try to autoconfigure it
when we're deploying sp2, maybe we don't need it while deploying
sp1. If this doesn't work then we'd have to provision the interface
using $IP2 in the meanwhile.

While at it try to pull changes from shared storage on sp1 when
deploying sp2 so both nodes are fully up2date after fresh
installation.

From: Michael Prokop <mprokop@sipwise.com>

deployment.sh

@@ -1280,7 +1280,6 @@ if "$PRO_EDITION" ; then
     ngcp-network --host=$PEER --peer=$THIS_HOST
     ngcp-network --host=$PEER --set-interface=lo --shared-ip=none --shared-ipv6=none
     ngcp-network --host=$PEER --set-interface=lo --ipv6='::1' --ip=auto --netmask=auto --hwaddr=auto
-    ngcp-network --host=$PEER --set-interface=eth1 --ip=$DEFAULT_IP2 --netmask=$DEFAULT_INTERNAL_NETMASK --type=ha_int
     ngcp-network --host=$PEER --role=proxy --role=lb --role=mgmt
     ngcp-network --host=$PEER --set-interface=lo --type=sip_int --type=web_ext --type=sip_ext \
                               --type=rtp_ext --type=ssh_ext --type=mon_ext --type=web_int
@@ -1293,8 +1292,11 @@ if "$PRO_EDITION" ; then
   else # ROLE = sp2
     ngcpcfg pull
     ngcp-network --host=$THIS_HOST --set-interface=$DEFAULT_INSTALL_DEV --ip=auto --netmask=auto --hwaddr=auto
+    ngcp-network --host=$THIS_HOST --set-interface=$INTERNAL_DEV --ip=auto --netmask=auto --hwaddr=auto --type=ha_int
     ngcpcfg commit "deployed /etc/ngcp-config/network.yml on $ROLE"
     ngcpcfg push --shared-only
+    ssh-keyscan $PEER >> ~/.ssh/known_hosts
+    ssh $PEER ngcpcfg pull
     ngcpcfg build
   fi
 EOT