Set cpu_mode to none for os-ha-ovs

In devcloud compute nodes have different CPUs, as result
nova migration will not work, when underlay VMs were spawned
on compute with different CPUs.

This patch change cpu_mode to none.

Change-Id: I951f631e5254196c50fa9bcfa966c5999368b982
Related-Prod: PROD-16579
1 file changed