Add model notes for Dell/EMC OS10

[davromaniak]

Pre-Request Checklist

• [ N/A ] Passes rubocop code analysis (try rubocop --auto-correct)
• [ N/A ] Tests added or adapted (try rake test)
• [ N/A ] Changes are reflected in the documentation
• [ OK ] User-visible changes appended to CHANGELOG.md

Description

I added some model notes for Dell/EMC OS10 switches.

I could also include the kludge mentionned in #2419 but I'm not so sure, so I want your advice on this.

Thanks.

[codecov-commenter]

Codecov Report

Merging #2425 (64f6303) into master (25107e5) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master    #2425   +/-   ##
=======================================
  Coverage   63.28%   63.28%           
=======================================
  Files          30       30           
  Lines        1498     1498           
=======================================
  Hits          948      948           
  Misses        550      550           

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