Not sufficiently described reuquest and response params tables for update firewall

[Takanori Miyagishi]

In Networking API v2.0 extensions (CURRENT)
 - http://developer.openstack.org/api-ref-networking-v2-ext.html#updateFirewall

There is a request parameters table for update firewall.
However, the table not sufficiently described parameters.
In addition, there is no response parameters table. It should be described.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/288430

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/288430
Committed: https://git.openstack.org/cgit/openstack/api-site/commit/?id=6314ec5e28144867e08fc790137316d4bdbe2850
Submitter: Jenkins
Branch: master

commit 6314ec5e28144867e08fc790137316d4bdbe2850
Author: takanorimiyagishi <email address hidden>
Date: Fri Mar 4 21:41:47 2016 +0900

    Add parameters for update firewall

    Add parameters of resquest parameters table and add response
    parameters table for update firewall.

    Change-Id: Ie76a1e6136462127ec5c0e3ccd76f566bad7ec64
    Closes-bug: #1548221