Co-logo fix

[bwgartner]

After the massive RC updates (and thanks for publishing those), I noticed that

• 2 of the Dell (K3s-slemicro and Rancher-K3s-slemicro) RCs were missing the co-logo
  • and DCs updated (removing obsolete SBP entry)

• the 2 Lenovo (K3s-slemicro and K3s-sles) RCs were missing the co-logo image

  • updated the respective SVG file

  After your review, feel free to merge into main, and republish the RCs