Fixed reading of ems_refresh_threshold memory_threshold value

[h-kataria]

Fixes https://bugzilla.redhat.com/show_bug.cgi?id=1649799

Value was getting saved properly but need to point to right key in the hash while reading it back to populate the drop down with correct saved value

[miq-bot]

Checked commit h-kataria@e8c9205 with ruby 2.3.3, rubocop 0.52.1, haml-lint 0.20.0, and yamllint 1.10.0
1 file checked, 1 offense detected

**

• 💣 💥 🔥 🚒 - Linter/Haml - Linter::Haml STDERR:

warning: parser/current is loading parser/ruby23, which recognizes
warning: 2.3.6-compliant syntax, but you are running 2.3.3.
warning: please see https://github.com/whitequark/parser#compatibility-with-ruby-mri.

[lgalis]

Looks good.

[simaishi]

@h-kataria there is a conflict backporting to Hammer branch. Please create a separate PR.

diff --cc app/views/ops/_settings_workers_tab.html.haml
index dba287dd1,bfa1f4b8f..000000000
--- a/app/views/ops/_settings_workers_tab.html.haml
+++ b/app/views/ops/_settings_workers_tab.html.haml
@@@ -207,7 -207,7 +207,11 @@@
            .col-md-8
              = select_tag('ems_refresh_worker_threshold',
                            options_for_select(@sb[:ems_refresh_threshold],
++<<<<<<< HEAD
 +                                              @edit[:new].get_raw_worker_setting(:MiqEmsRefreshWorker, :memory_threshold)),
++=======
+                                               @edit[:new][:workers][:worker_base][:queue_worker_base][:ems_refresh_worker][:defaults][:memory_threshold]),
++>>>>>>> c37d42cef... Merge pull request #4925 from h-kataria/fixed_reading_of_refresh_worker_memory_threshold_value
                            :class    => "selectpicker")
            :javascript
              miqSelectPickerEvent('ems_refresh_worker_threshold', "#{url}")

[simaishi]

Backported to Hammer via #4931