Set max microversion 2.43 for add_fixed_ip

add_fixed_ip is deprecated from microversion 2.44, so this is
to set microversion 2.43 for add_fixed_ip.

https://developer.openstack.org/api-ref/compute/#add-associate-fixed-ip-addfixedip-action-deprecated

partially-implements: blueprint clear-deprecated-api

Change-Id: I78b19b06fecc0191958e9ff0e8b203cd5ab9a8a4
1 file changed