Add the missed stub upgrade.yml
Add the missed stub upgrade.yml

After introduction of pull action and turing every main.yml into
{{action}}.yml we lost ability to perform upgrade.

Change-Id: Id6b5921bd1e3e7b196c4b3223920e51ae5e0b840
Closes-Bug: #1538210

negronjl/kolla,GalenMa/kolla,negronjl/kolla,intel-onp/kolla,coolsvap/kolla,openstack/kolla,rahulunair/kolla,dardelean/kolla-ansible,GalenMa/kolla,toby82/kolla,tonyli71/kolla,rahulunair/kolla,coolsvap/kolla,dardelean/kolla-ansible,negronjl/kolla,mandre/kolla,mandre/kolla,mrangana/kolla,dardelean/kolla-ansible,stackforge/kolla,toby82/kolla,openstack/kolla,toby82/kolla,nihilifer/kolla,mrangana/kolla,stackforge/kolla,intel-onp/kolla,mandre/kolla,stackforge/kolla,nihilifer/kolla,tonyli71/kolla,coolsvap/kolla