Larger disk means more IO performance.
Require more CPUs to aid mksquashfs performance.
Signed-off-by: Miroslav Vadkerti <mvadkert@redhat.com>
(cherry picked from commit 067338f7db3ca39a7ba5677c4d8fea33f827e758)
In preparation for having multiple top-level kiwi description files,
expose the ability to define which file to read.
Additionally, tests are updated to use this new flag.
We now have more than one cloud system that is essentially a KVM
environment that uses cloud-init to boot, so now we declare that
"generic" and have the OpenStack and Oracle images reuse those
definitions.
Also, in preparation for layered cloud image variants, rename
them from "Cloud-" to "Cloud-Base-". Vagrant variants are
similarly prefixed to make it clear who provides them.
Finally, restructure the layout of the tmt plans to match the
description structure.
