Allow embedding of Grafana graphs

[p-se]

Embedding Grafana graphs is allowed up to Grafana 6.1 by default and since version 6.2, embedding needs to be explicitly enabled.

Since Grafana has been updated in DeepSea from version 5.x to version 7.x, the change in the configuration is required.

Fixes: https://bugzilla.suse.com/show_bug.cgi?id=1186131

Signed-off-by: Patrick Seidensal pseidensal@suse.com

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Checklist:

• [ ] Added unittests and or functional tests
• [ ] Adapted documentation
• [x] Referenced issues or internal bugtracker
• [ ] Ran integration tests successfully (trigger with "@susebot run teuthology" in a GitHub comment; see the wiki for more information)

[p-se]

@susebot run teuthology

[sebastian-philipp]

do you need https://github.com/ceph/ceph/pull/42378/commits/e90433b8f9bb4d60b5a6da636d880ce0b7b8b243 as well?