Explicitly show the debos boot messages

New versions of fakemachine drop the bios, kernel and system boot messages to give a more pleasant user experience. However for running in CI especially when there are sometimes kernel issues in fakemachine this is not the right thing. So turn back on the boot messages.

Backported original patch by Sjoerd Simons.

Signed-off-by: Denis Pynkin denis.pynkin@collabora.com