Xen support in the upcoming 22.04 LTS version

[Oliver Linden]

Hi folks,

checking the current packages for the 22.04 LTS version I recognized 
that the Xen packages are still on version 4.11 as maintained in 20.04 LTS.

Since Debian bullseye is already with Xen version 4.14 I would suggest a 
sync with the Debian repository before freeze to get a more recent, 
performant and secure Xen shipped with the new LTS release.

Best, Oliver