fix accelerator detection logic

[Gkrumbach07]

closes: #1863

Description

There is a problem in gpu detection reduce function. When the detection iterates over each accelerator, it determines enablement by this logic prevConfigured ?? checkConfigured(). The issue was that we used ?? which would cause the configured var to always be false if it started as false because false ?? true is still false. This PR uses || instead which would give the correct result false || true = true

How Has This Been Tested?

1. hop on a gpu cluster with non accelerator profiles and the gpu-migration-status config map deleted.
2. start the dashboard
3. a migrated-gpu accelerator should be added

Test Impact

no test impact -> hot fix

Request review criteria:

Self checklist (all need to be checked):

• The developer has manually tested the changes and verified that the changes work
• Commits have been squashed into descriptive, self-contained units of work (e.g. 'WIP' and 'Implements feedback' style messages have been removed)
• Testing instructions have been added in the PR body (for PRs involving changes that are not immediately obvious).
• The developer has added tests or explained why testing cannot be added (unit tests & storybook for related changes)

If you have UI changes:

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After the PR is posted & before it merges:

• The developer has tested their solution on a cluster by using the image produced by the PR to main

[lucferbux]

/lgtm

Tested and it's working fine

[lucferbux]

/approve

[openshift-ci]

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