d/control: Add XSBC-Original-* Fields

This makes sure we follow the practices documented under
https://tracker.pureos.net/w/development/packaging_overview/

Closes https://tracker.pureos.net/T1030
5 jobs for adjust_vcs in 18 minutes and 57 seconds (queued for 1 second)
Status Name Job ID Coverage
  Package
passed package-pureos-byzantium #368942
librem5

00:04:55

passed package-pureos-byzantium:arm64 #368943
librem5:arm64

00:18:57

 
  Test Package
passed autopkgtest-pureos-byzantium-package #368944
librem5

00:01:17

passed check-tarball #368946
librem5

00:00:45

passed lintian-pureos-byzantium-package #368945
librem5

00:00:40