Bump max-servers to 50 on citycloud-kna1
Bump max-servers to 50 on citycloud-kna1

A mirror has been set up and images build, let's try to use this.

Change-Id: I40f86d007283a5f278c55209d3f8ade5128f0a33

Tesora/tesora-project-config,openstack-infra/project-config,openstack-infra/project-config,Tesora/tesora-project-config