Prepare 20.11.1-1

Hi, this is preparing 20.11.1-1 for experimental and for a sync to Ubuntu including the recent test-fixes for arm64. I have this time used the "merge" approach as requested/discussed last time.

I'd ask to double check if this is now as you'd envisioned the merge-based approach a) the pristine-tar I pushed is essentially just the import $ gbp pristine-tar commit ../dpdk-20.11.1.orig.tar.xz b) the upstream-20.11-stable now is a real merge (although just one commit between -rc1 and final) $ git merge v20.11.1 c) the packaging branch then got a merge of upstream-20.11-stable $ git merge upstream-20.11-stable

As usual I have pushed pristine and upstream branch already (for the CI). If there is a problem we can force push what you had in mind instead.

This is the PR for the packaging branch into unstable which on top of the above only is the change in the changelog. That should be all we need right?