XXX: Fix "kvm: Drop ipv4-network-info"

As refernce to the network-config-ipv4 part has been removed from the
publish-connection-information the part was not installed anymore, so the
netconfig.sh file was not added.

Fixed it by simply adding this part to the installed ones.

XXX: Test coverage

This fixes commit 3f7d8965

software/kvm/buildout.hash.cfg

@@ -19,7 +19,7 @@ md5sum = 087f226ba90928dcc5a722d7008c867a
 
 [template-kvm]
 filename = instance-kvm.cfg.jinja2
-md5sum = d949e6100fd4e01819cc2867a65c6e65
+md5sum = baa3ee5b653731124bfc2ac2fa835787
 
 [template-kvm-cluster]
 filename = instance-kvm-cluster.cfg.jinja2.in

software/kvm/instance-kvm.cfg.jinja2

@@ -879,6 +879,7 @@ ipv6-network-info =
 
 
 {% if use_tap and slap_configuration.get('tap-ipv4-addr') -%}
+{%   do part_list.append('network-config-ipv4') %}
 [network-config-ipv4]
 recipe = plone.recipe.command
 filename = netconfig.sh