
The policies field has been replaced with the policy field since Nova API version 2.64[1] This commit adds a check to make sure the correct field is used. [1]https://docs.openstack.org/nova/latest/reference/api-microversion-history.html#id59 Change-Id: I06d3211937d822c26070b7f8ad757c365dcbb1bb Story: #2007822 Task: #40101