[docs] Networking-related sections of User Guide are outdated

[Aleksey Kasatkin]

"Setting NIC bonding (NIC aggregation)" and "Mapping logical networks to physical interfaces on servers" sections of MOS User Guide need update due to https://blueprints.launchpad.net/fuel/+spec/refactor-l23-linux-bridges is implemented.

[Irina Povolotskaya (ipovolotskaya)]

Assigning the bug to Evgeniy as he's the doc lead for the feature.

[Alexander Adamov (aadamov)]

to be fixed during Fuel User Guide restructuring

[Fuel Devops McRobotson (fuel-devops-robot)]

Fix proposed to branch: master
Change author: Alexander Adamov <email address hidden>
Review: https://review.fuel-infra.org/17953

[Fuel Devops McRobotson (fuel-devops-robot)]

Reviewed: https://review.fuel-infra.org/17953
Submitter: Olga Gusarenko <email address hidden>
Branch: master

Commit: eb97cbbceeed10a5b097fbbcfeb06f746900e41d
Author: Alexander Adamov <email address hidden>
Date: Mon Mar 21 14:51:40 2016

[Docs] Update networking sections of Fuel UG

Added corrections:
- Bond network interfaces
- Using Linux native bonds in Fuel by default

Change-Id: Ia0068cfa0a35ec620f236bbb24087468bfd88309
Implemets: blueprint refactor-l23-linux-bridges
Closes-Bug: #1444474

[Fuel Devops McRobotson (fuel-devops-robot)]

Fix proposed to branch: stable/8.0
Change author: Alexander Adamov <email address hidden>
Review: https://review.fuel-infra.org/18301

[Fuel Devops McRobotson (fuel-devops-robot)]

Reviewed: https://review.fuel-infra.org/18301
Submitter: Olga Gusarenko <email address hidden>
Branch: stable/8.0

Commit: d714d9eb6a01caa28d7223315e26286ce588e8cf
Author: Alexander Adamov <email address hidden>
Date: Tue Mar 22 08:06:40 2016

[Docs] Update networking sections of Fuel UG

Added corrections:
- Bond network interfaces
- Using Linux native bonds in Fuel by default

Change-Id: Ia0068cfa0a35ec620f236bbb24087468bfd88309
Implemets: blueprint refactor-l23-linux-bridges
Closes-Bug: #1444474
(cherry picked from commit eb97cbbceeed10a5b097fbbcfeb06f746900e41d)