workspace: provide gzipped kernel

Signed-off-by: Enrico Scholz <enrico.scholz@sigma-chemnitz.de>
3 jobs for morty-next in 9 seconds (queued for 4 seconds)
latest
Status Job ID Name Coverage
  Build
passed #1169
disk:+50G mem:+4G
build:fedora:25

00:00:03

passed #1170
disk:+50G mem:+4G
sdk:fedora:25

00:00:03

 
  Assemble
passed #1171
assemble:fedora

00:00:02