Fix VNC setup in neutron DVR multinode jobs

In [1] the VNC related errors for
gate-tempest-dsvm-multinode-full-ubuntu-xenial-nv were fixed, but we are
still seeing them in
gate-tempest-dsvm-neutron-dvr-*multinode-full-ubuntu-xenial-nv jobs, so
add the same local_conf settings there.

[1] https://review.openstack.org/444164

Change-Id: I9d78e7f96af09a1983b90eb5f7fa721d42c3605b

jenkins/jobs/devstack-gate.yaml

@@ -1846,6 +1846,12 @@
       - link-logs
       - net-info
       - devstack-checkout
+      - local_conf:
+          conf: |
+            [[local|localrc]]
+            NOVA_VNC_ENABLED=true
+            VNCSERVER_LISTEN=0.0.0.0
+            VNCSERVER_PROXYCLIENT_ADDRESS=$HOST_IP
       - shell: |
           #!/bin/bash -xe
           export PYTHONUNBUFFERED=true

jenkins/jobs/neutron.yaml

@@ -169,6 +169,12 @@
       - link-logs
       - net-info
       - devstack-checkout
+      - local_conf:
+          conf: |
+            [[local|localrc]]
+            NOVA_VNC_ENABLED=true
+            VNCSERVER_LISTEN=0.0.0.0
+            VNCSERVER_PROXYCLIENT_ADDRESS=$HOST_IP
       - shell: |
           #!/bin/bash -xe
           export PYTHONUNBUFFERED=true