Before this commit an oem image still had the kiwi initrd_system
set as default. As we are decommission the custom kiwi initrd
concept the default should be changed. It is still possible to
use a custom kiwi initrd but it needs to be explicitly requested
via the initrd_system="kiwi" attribute. In addition to the
changed default a runtime check was introduced that checks
the presence of the boot= attribute which only makes sense
in combination with the kiwi initrd_system. If boot= is
set but initrd_system="kiwi" is not, a message is raised that
explains the situation and either requests setting initrd_system
properly or deleting the boot attribute. The change only
affects people who still use oem with a boot="oemboot/..."
setting and no explicit selection of kiwi as the initrd_system.
As these image type configurations should not be in use anyway
because this is all legacy and announced to go away, we
need to make the next step and enforce a new default in
code. This is related to Issue #1299
The bootloader settings are handled through attributes in the
type element. Over the years some attributes were added and
there are requests for more settings. Therefore the bootloader
setup deservers its own section. With this commit the schema
changes from v7.1 to v7.2 and moves bootloader, bootloader_console
boottimeout and zipl_targettype into a new bootloader subsection
below type. The commit also adds an auto transformation template
such that customers don't have to change their image descriptions.
This is related to Issue #1401
Updates all XML descriptions to latest schema version and
also includes adaptions to the test XML descriptions for
testing the new Xen guest and server setup
