tests/functional: Convert the Avocado x86_64 tuxrun test

Move the tests to a new file so that they can be run via
qemu-system-x86_64 in the functional framework.

Signed-off-by: Thomas Huth <thuth@redhat.com>
Message-ID: <20241011131937.377223-11-thuth@redhat.com>
4 files changed