Updated openstack/openstack
Project: openstack-dev/devstack  376a4a1a40a282c538ebd8a731c38de1589080bd

Ensure neutron configuration files are cleaned by clean.sh

Add the /etc/neutron directory to the list of directories
that are deleted.

Change-Id: Ia560179a3cf121f8d09a0c10c8b68375fdd13be7