Currently, the 'Host Status' field is shown only for 'server show' but
not for 'server list'. The host_status can be helpful for users who are
having issues with servers that show a status of ACTIVE, as it can show
a hint about the compute host status when nova policy is configured to
allow it.
Story: 2009689
Task: 44003
Change-Id: I6209cf52044218b7b32ab2fa5712574f12ba2f5f