Update cm.grafana-dashboard-definitions.yaml

[steled]

• update to fix N/A problem for some graphs

What this PR does / why we need it:

• there were some graphs that showed N/A

Which issue(s) this PR fixes (optional, in fixes #<issue number>(, fixes #<issue_number>, ...) format, will close the issue(s) when PR gets merged):
Fixes #

Special notes for your reviewer:

Does this PR introduce a user-facing change?:

[kubermatic-bot]

Hi @steled. Thanks for your PR.

I'm waiting for a kubermatic member to verify that this patch is reasonable to test. If it is, they should reply with /ok-to-test on its own line. Until that is done, I will not automatically test new commits in this PR, but the usual testing commands by org members will still work. Regular contributors should join the org to skip this step.

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[toschneck]

/ok-to-test

[toschneck]

/lgtm

[kubermatic-bot]

LGTM label has been added.

Git tree hash: 6b3094cc4f6ddd47ba34aef3ac242fc791267c39

[toschneck]

/approve

[kubermatic-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: toschneck

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