- Version 10

- Revert to use tty7 (gh#openSUSE/agama#1582)
openQA tty expectations for installer are always in this tty.
The change to tty2 created an sporadic failure assigning tty2
as a non-grafical one anyway in ppc64le and aarch64.

- Define boot menu for all arches by scripts in config-cdroot
newly added x86_64 and aarch64 write stock copies from kiwi
generated grub.cfg
- intel uefi boot fix from "Boot from disk item" (gh#openSUSE/agama#1609)
- Keep -x on purpose for future trubleshooting (advice from Marcus)
- Use $kiwi_iname instead of static agama-live reference in all of
config-cdroom/* with exception of s390x, where for some reason
we use SUSE Linux... string instead