The 'auto' and 'none' network allocation policies are only supported on
compute API microversion 2.37 or later. Enforce this in the code.
Change-Id: I90f8fb1e61ead4bd406ea76bbeb731b913805b13
Signed-off-by: Stephen Finucane <sfinucan@redhat.com>
Story: 2010385
Task: 46657