Reorder neutron_network to match Juno
Reorder neutron_network to match Juno

Reorder neutron_network to match the Juno install-guide. No functional
changes.

Change-Id: I5d376fc3d2ce25485a60ca45e9ce198d6fb4ec9c

harrisonfeng/training-guides,openstack/training-guides,Nabs007/training-guides,Nabs007/training-guides,Nabs007/training-guides,harrisonfeng/training-guides,harrisonfeng/training-guides,openstack/training-guides