[WIP] [FINE] Change raw_stdout method to fix displaying details of active ansible services

[hstastna]

Issue with more info: ManageIQ/manageiq-ui-classic#2470
BZ: https://bugzilla.redhat.com/show_bug.cgi?id=1590761
UI PR: ManageIQ/manageiq-ui-classic#4150 (needs to merge after this PR)

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Steps to reproduce:

1. Go to Services > My Services
2. Click on some service using Ansible (display its details page or click on it in accordion) while Embedded Ansible server role is not active
3. Click on some Child Service in details page of selected service (or click on it in accordion)
   => nothing happens, child service is not displayed + error:

[----] I, [2018-06-14T15:20:04.648758 #27412:2b07798d59cc]  INFO -- :   Rendered /home/hstastna/manageiq/fine_branch/manageiq-ui-classic/app/views/service/_svcs_show.html.haml (2430.0ms)
[----] F, [2018-06-14T15:20:04.648995 #27412:2b07798d59cc] FATAL -- : Error caught: [ActionView::Template::Error] Embedded ansible is disabled
/home/hstastna/manageiq/fine_branch/manageiq/app/models/manageiq/providers/embedded_ansible/provider.rb:14:in `raw_connect'
/home/hstastna/manageiq/fine_branch/manageiq/app/models/manageiq/providers/ansible_tower/shared/provider.rb:41:in `connect'
/home/hstastna/manageiq/fine_branch/manageiq/app/models/provider.rb:49:in `with_provider_connection'
/home/hstastna/manageiq/fine_branch/manageiq/app/models/manageiq/providers/ansible_tower/shared/automation_manager.rb:5:in `with_provider_connection'
/home/hstastna/manageiq/fine_branch/manageiq/app/models/manageiq/providers/ansible_tower/shared/automation_manager/job.rb:138:in `raw_stdout'
/home/hstastna/manageiq/fine_branch/manageiq-ui-classic/app/views/service/_svcs_show.html.haml:47:in `block in __home_hstastna_manageiq_fine_branch_manageiq_ui_classic_app_views_service__svcs_show_html_haml___190407694864775805_69946839755080'

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Step 2 from steps to reproduce:

Before: (Nothing happens, child service is not displayed + error)

After: (with merging PR to UI)

Note:
I've created this PR as backport conflicts would very probably occur if we tried to backport #16441 which fixes the BZ for 5.9 and latest master (already backported to gaprindashvili).

[miq-bot]

Checked commit hstastna@1c224cb with ruby 2.3.3, rubocop 0.52.1, haml-lint 0.20.0, and yamllint 1.10.0
1 file checked, 0 offenses detected
Everything looks fine. 🍪