Merge branch 'fix-dlink-cpu-metrics-oid' into 'master'

Add 'Metrics | OID | CPU | Usage | Value' to DLink DxS CPU metrics.

See merge request !5037

(cherry picked from commit b7cbe44a)

e6d367dd Add 'Metrics | OID | CPU | Usage | Value' to DLink DxS CPU metrics.
8 jobs for !5042 with cherry-pick-b7cbe44a in 17 minutes and 25 seconds (queued for 3 seconds)
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