add release notes jobs for nova

Change-Id: Ic74aa115833cd8e2a9effdd6b56fa478cab427c8
Depends-On: Ibd74e62b6f36076dbec17dd146632fd42aad6eb2

jenkins/jobs/projects.yaml

@@ -3229,6 +3229,7 @@
           envlist: functional
       - translation-jobs
       - translation-jobs-liberty
+      - openstack-releasenotes-jobs
 
 - project:
     name: nova-docker

zuul/layout.yaml

@@ -708,6 +708,7 @@ jobs:
           - ^api-guide/.*$
           - ^nova/tests/.*$
           - ^nova/hacking/.*$
+          - ^releasenotes/.*$
           - ^tests-py3.txt$
           - ^tools/.*$
           - ^tox.ini$
@@ -6487,6 +6488,7 @@ projects:
       - name: translation-jobs
       - name: translation-jobs-liberty
       - name: experimental-tripleo-jobs
+      - name: release-notes-jobs
     check:
       - gate-devstack-dsvm-cells
       - gate-nova-tox-functional