Check if the InstanceNUMACell.pcpuset attribute exist prior to relying on it. This change enables support for the VM instances with pinned CPUs (hw:cpu_policy=dedicated) that were created before upgrading the OpenStack Nova to Victoria release. (815923)

Check if the InstanceNUMACell.pcpuset attribute exist prior to relying on it. This change enables support for the VM instances with pinned CPUs (hw:cpu_policy=dedicated) that were created before upgrading the OpenStack Nova to Victoria release. (815923) · Gerrit Code Review