Network-verification as a graph doesn't work due to wrong ovs settings

Fix proposed to branch: stable/mitaka
Review: https://review.openstack.org/418222

Reviewed: https://review.openstack.org/418222
Committed: https://git.openstack.org/cgit/openstack/fuel-library/commit/?id=b471194e98eefcf3695addc2a7a3de9ee51e4b32
Submitter: Jenkins
Branch: stable/mitaka

commit b471194e98eefcf3695addc2a7a3de9ee51e4b32
Author: Stanislaw Bogatkin <email address hidden>
Date: Tue Jan 10 07:18:31 2017 +0000

    Revert "Revert "Base code for remove OVS usage ability""

    Closes-Bug: #1655246
    This reverts commit 314744074ce68ae75cfbf68f5afc88f8ccd11adb.

    Change-Id: I7488791c11afe726b056dc33bd362867cf53174e

Verified on 9.2 snapshot #747.

Actual results:
Before the fix deployment with net-verification graph is failed on 'v_mangle_ovs' task which is required absent file /etc/puppet/modules/osnailyfacter/modular/netconfig/remove_ovs_usage.pp.

After the fix deployment with net-verification graph is finished successfully.

[root@nailgun ~]# ll /etc/fuel/graphs/
total 12
drwxr-xr-x. 2 root root 4096 Jan 11 12:51 deletion
drwxr-xr-x. 2 root root 4096 Jan 11 12:51 net-verification
drwxr-xr-x. 2 root root 4096 Jan 11 12:51 provision
[root@nailgun ~]# fuel2 graph upload -e 1 -t my_type -d /etc/fuel/graphs/net-verification/
Deployment graph was successfully uploaded.
[root@nailgun ~]# fuel2 graph execute -e 1 -t my_type
Deployment task with id 2 for the environment 1 has been started.
[root@nailgun ~]# fuel2 task list
+----+--------+------------+------------+---------+--------+---------+----------+
| id | status | name | graph_type | cluster | result | dry_run | progress |
+----+--------+------------+------------+---------+--------+---------+----------+
| 1 | ready | dump | None | None | {} | False | 100 |
| 2 | ready | deploy | None | 1 | {} | False | 100 |
| 3 | ready | deployment | my_type | 1 | {} | False | 100 |
+----+--------+------------+------------+---------+--------+---------+----------+