tests/functional: add a m68k tuxrun tests

We didn't have this before and as it exercises the m68k virt platform
it seems worth adding. We don't wait for the shutdown because QEMU
will auto-exit on the shutdown.

Cc: Laurent Vivier <laurent@vivier.eu>
Cc: Anders Roxell <anders.roxell@linaro.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20250108121054.1126164-4-alex.bennee@linaro.org>
3 files changed