Release tripleo instack-undercloud m2

Late, but we would like to release instack-undercloud m2.
It was a mistake from me to not release it last week, I thought it was
already done.

Change-Id: Ie7ed98080fefaaab9cef53c23a4350f1a2081350

deliverables/pike/instack-undercloud.yaml

@@ -10,5 +10,9 @@ releases:
   - hash: 4e9b43dabbd64e8db88828e20dc1a98af9076654
     repo: openstack/instack-undercloud
   version: 7.0.0
+- projects:
+  - hash: 578c2a94a8e6d3c628ebda4330f01e3f289d0f81
+    repo: openstack/instack-undercloud
+  version: 7.1.0
 team: tripleo
 type: other