[Neutron] Ensure ovs agent setup runs for all CONFIG_NEUTRON_ML2_TENANT_NETWORK_TYPES

Previously we used to pick only the first type from tenant network types,
Now packstack parses whole array and sets ovs agent on nodes accordingly.

Closes-Bug: rhbz#1163697 rhbz#1168242
Change-Id: I15be465c7d910cee7224c0bf78e2a6a9d93f9bb4
Merge "[Neutron] Ensure ovs agent setup runs for all CONFIG_NEUTRON_ML2_TENANT_NETWORK_TYPES"
[Neutron] Deprecate ovs and linuxbridge plugins

They are no longer available in Juno.
Change-Id: Ic191384ca46594340ce5cf13b08218299e784117
Avoid KeyError: 'CONFIG_CINDER_VOLUMES_SIZE' error

- When CONFIG_CINDER_VOLUMES_CREATE=n, it should always pass in the cinder
  volume size calculation block.

Change-Id: I6cf6fd4767c66dc87ea31cbafe17bb8fcfebbf70
Fixes: rhbz#1164359
Signed-off-by: Gael Chamoulaud <gchamoul@redhat.com>
Merge "[Neutron] Deprecate ovs and linuxbridge plugins"