[NDMII-3147] update Cisco IP SLA metrics

[jedupau]

What does this PR do?

This PR adds some tags on existing Cisco IP SLA metrics and update their description which was not clear enough.

Motivation

Some customers wants us to support Cisco IP SLA but we already have some metrics in our _cisco-generic profile, so updating the description will hopefully make them for visible

Review checklist (to be filled by reviewers)

• Feature or bugfix MUST have appropriate tests (unit, integration, e2e)
• Add the qa/skip-qa label if the PR doesn't need to be tested during QA.
• If you need to backport this PR to another branch, you can add the backport/<branch-name> label to the PR and it will automatically open a backport PR once this one is merged

[codecov]

Codecov Report

Attention: Patch coverage is 80.00000% with 1 line in your changes missing coverage. Please review.

Project coverage is 89.45%. Comparing base (6daceec) to head (af0fb42).

Additional details and impacted files

Flag	Coverage Δ
activemq	?
cassandra	?
hive	?
hivemq	?
hudi	?
ignite	?
jboss_wildfly	?
kafka	?
presto	?
snmp	95.64% <80.00%> (-0.09%)	⬇️
solr	?

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[TCheruy]

🥜 nitpick: ‏ I think we should write these in snake case

[TCheruy]

👏