Enable openSUSE to work in Python 3.x environments
Enable openSUSE to work in Python 3.x environments

Add packages required to run devstack with USE_PYTHON3=True.

Change-Id: Iee43c9335bd82c10cfaeffb02d1d99290c34bb83

noironetworks/devstack,dtroyer/devstack,nawawi/openstack,group-policy/devstack,nawawi/openstack,dtroyer/devstack,richliu/devstack,richliu/devstack,noironetworks/devstack,openstack-dev/devstack,openstack-dev/devstack,group-policy/devstack