Show Cloud credentials only when those were selected.

[h-kataria]

Fixes https://bugzilla.redhat.com/show_bug.cgi?id=1533109

@lgalis please test

before:

after:

[miq-bot]

Checked commit h-kataria@ea20d46 with ruby 2.3.3, rubocop 0.52.1, haml-lint 0.20.0, and yamllint 1.10.0
2 files checked, 5 offenses detected

spec/helpers/service_helper/textual_summary_spec.rb

• ❗ - Line 84, Col 113 - Layout/SpaceAroundOperators - Surrounding space missing for operator =>.
• ❗ - Line 84, Col 46 - Style/BracesAroundHashParameters - Redundant curly braces around a hash parameter.
• ❗ - Line 84, Col 53 - Layout/SpaceAroundOperators - Surrounding space missing for operator =>.
• ❗ - Line 84, Col 70 - Layout/SpaceAroundOperators - Surrounding space missing for operator =>.
• ❗ - Line 84, Col 83 - Layout/SpaceAroundOperators - Surrounding space missing for operator =>.

[lgalis]

Verified in the UI that the Cloud credentials are not displayed in the summary if they are not selected.

There is another issue mentioned in the BZ - the fact that the last added machine credential is used in a provisioned service - I was not able to verify this issue yet.

[lgalis]

The cloud credential row is no longer shown in the summary screen if it is not selected.

The other issue mentioned in the BZ is not reproduceable - so looks good.

[simaishi]

Gaprindashvili backport details:

$ git log -1
commit 812b96d5fd2aa5806025608b66614b2fa53bda43
Author: Dan Clarizio <dclarizi@redhat.com>
Date:   Thu Jan 11 08:36:08 2018 -0800

    Merge pull request #3221 from h-kataria/credential_info_display_fix_on_service_summary
    
    Show Cloud credentials only when those were selected.
    (cherry picked from commit acd6a9bb58d387defd67e4f12ead92314d25b7ac)
    
    Fixes https://bugzilla.redhat.com/show_bug.cgi?id=1533923