Convert legacy-neutron-fwaas-v2-dsvm-tempest job to zuulv3

This patch renames job "legacy-neutron-fwaas-v2-dsvm-tempest" to
"neutron-fwaas-v2-dsvm-tempest" and converts it zuulv3 syntax.

Change-Id: I864af53231b9a28e30b901c1989c49fed22f4d46

.zuul.yaml

@@ -11,7 +11,7 @@
       - release-notes-jobs-python3
     check:
       jobs:
-        - legacy-neutron-fwaas-v2-dsvm-tempest
+        - neutron-fwaas-v2-dsvm-tempest
         - legacy-neutron-fwaas-dsvm-functional
         - legacy-grenade-dsvm-neutron-fwaas-multinode:
             voting: false
@@ -22,7 +22,7 @@
             voting: false
     gate:
       jobs:
-        - legacy-neutron-fwaas-v2-dsvm-tempest
+        - neutron-fwaas-v2-dsvm-tempest
         - legacy-neutron-fwaas-dsvm-functional
     experimental:
       jobs:
@@ -33,3 +33,25 @@
     parent: neutron-fullstack
     vars:
       project_name: neutron-fwaas
+
+
+- job:
+    name: neutron-fwaas-v2-dsvm-tempest
+    parent: devstack-tempest
+    roles:
+      - zuul: openstack/devstack
+    required-projects:
+      - openstack/devstack-gate
+      - openstack/neutron
+      - openstack/neutron-fwaas
+      - openstack/tempest
+    vars:
+      tox_envlist: all-plugin
+      tempest_test_regex: ^neutron_fwaas\.
+      devstack_plugins:
+        neutron: https://opendev.org/openstack/neutron.git
+        neutron-fwaas: https://opendev.org/openstack/neutron-fwaas.git
+      devstack_services:
+        q-fwaas-v2: true
+      devstack_localrc:
+        NETWORK_API_EXTENSIONS: "agent,binding,dhcp_agent_scheduler,external-net,ext-gw-mode,extra_dhcp_opts,quotas,router,security-group,subnet_allocation,network-ip-availability,auto-allocated-topology,timestamp_core,tag,service-type,rbac-policies,standard-attr-description,pagination,sorting,project-id,fwaas_v2"