Fix saving of ems_refresh_worker and ems_metrics_collector_worker

[ZitaNemeckova]

Fixes https://bugzilla.redhat.com/show_bug.cgi?id=1799443

Introduced by #5528

Steps to reproduce:

1. Navigate to Configuration -> Settings -> (appliance) -> Workers
2. Change Refresh worker Memory threshold to something else
3. Change C & U Data Collectors Memory threshold and Count to something else
4. Save the changes
5. Refresh the page

Before:
Values stay same as original ones
After:
Values are changed to ones you selected

Just making loaded data same as sent one. See

manageiq-ui-classic/app/javascript/components/workers-form/workers-form.jsx

Lines 39 to 44 in 6a179e6

	ems_metrics_collector_worker: {
	defaults: {
	memory_threshold: parseWorker(wb.queue_worker_base.ems_metrics_collector_worker.defaults).bytes || baseMemDefault,
	count: selectCount(wb.queue_worker_base.ems_metrics_collector_worker.defaults.count),
	},
	},

and

manageiq-ui-classic/app/javascript/components/workers-form/workers-form.jsx

Lines 52 to 55 in 6a179e6

	ems_refresh_worker: {
	defaults: {
	memory_threshold: parseWorker(wb.queue_worker_base.ems_refresh_worker.defaults).bytes || baseMemDefault,
	},

@miq-bot add_label bug, ivanchuk/yes

[miq-bot]

Checked commit ZitaNemeckova@e27a194 with ruby 2.5.7, rubocop 0.69.0, haml-lint 0.20.0, and yamllint
0 files checked, 0 offenses detected
Everything looks fine. ⭐

[simaishi]

Ivanchuk backport details:

$ git log -1
commit 7f76eb878d827abf664a580ff0a7edf1241b910c
Author: Milan Zázrivec <[email protected]>
Date:   Fri Feb 14 10:53:55 2020 +0100

    Merge pull request #6678 from ZitaNemeckova/fix_workers

    Fix saving of ems_refresh_worker and ems_metrics_collector_worker

    (cherry picked from commit cbef87d5c81055dddb9e5d3f1a8854d39adc1fd2)

    Fixes https://bugzilla.redhat.com/show_bug.cgi?id=1805845