release-22.2:Backport!6825

Merged Andrey Vertiprahov requested to merge cherry-pick-bd66bf01 into release-22.2

DCN.DCWL.get_metrics. Fix check 'channel-util' key in metrics.

See merge request !6825 (merged)

(cherry picked from commit bd66bf01)

425e7901 DCN.DCWL.get_metrics. Fix check 'channel-util' key in metrics.

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