More debian packaging fixes

1 job for master in 1 minute and 4 seconds (queued for 1 second)
Status Job ID Name Coverage
  Build
failed #636009724
job_build_cryogend

00:01:04

 
Name Stage Failure
failed
job_build_cryogend Build
   --------------------   ------   -----------   -----------
7667712 -> 2865928 37.38% linux/arm64 cryogend

Packed 1 file.
$ cd ..
$ mkdir -p debian/{DEBIAN,usr/bin,usr/share/cryogen,etc/systemd/system}
$ cp cryogend/cryogend debian/usr/bin
cp: can't create 'debian/usr/bin': No such file or directory
ERROR: Job failed: exit code 1