Add RHEL 7 for SAP ELS to the RHUI config

[Rezney]

There is going to be a separate ELS RHUI client package for
RHEL 7 for SAP.

[github-actions]

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[Rezney]

@MichalHe could you please take a look? ^

[MichalHe]

LGTM

[pirat89]

keeping out of the changelog as the PR has been reverted