Comment 3 for bug 1600482

Reviewed: https://review.openstack.org/355111
Committed: https://git.openstack.org/cgit/openstack/charm-neutron-gateway/commit/?id=9de0b86aa6fc35283cd1b062eba904875129bf5e
Submitter: Jenkins
Branch: stable/16.07

commit 9de0b86aa6fc35283cd1b062eba904875129bf5e
Author: Narinder Gupta <email address hidden>
Date: Thu Aug 11 14:30:16 2016 -0500

    Enable neutron gw charm to control # of workers

    Charm was missing this functionality and this patch is to add
    this feature. We were trying to deploy this charm on bare metal
    host machine with 72 cores. In end up creating 144 processes for
    nova-metadata-api, and neutron.

    This patch will provide the option to limit the number of worker
    process in case of high number of cores in a host.

    Enable it for icehouse, kilo, liberty and mitaka.

    cherry picked from commit 93d6440e459f19676ce9336332e4f91efc85897f

    Partial-Bug: 1600482
    Change-Id: Iedcbe6c53746a203937b78dd00e83fda7681bd8f