Update release and branch to Train for tripleo-upgrade.

- Tag: 5.0.0
- Branch: stable/train

Change-Id: Id85674522624b8f7bb880f27731655677d1f4b1d

deliverables/_independent/tripleo-upgrade.yaml

@@ -10,6 +10,8 @@ branches:
     location: 3.0.0
   - name: stable/stein
     location: 4.0.0
+  - name: stable/train
+    location: 5.0.0
 releases:
   - projects:
       - hash: 0f37163303a00936b56522e2cc3310e38b87a343
@@ -27,6 +29,10 @@ releases:
       - hash: 39d4b47821829edbd0ad7d393262b60324f815a4
         repo: openstack/tripleo-upgrade
     version: 4.0.0
+  - projects:
+      - hash: 4d189c08d4cbc67312ebb902e61f077713a9905e
+        repo: openstack/tripleo-upgrade
+    version: 5.0.0
 team: tripleo
 type: other
 repository-settings: