hw/arm/cubieboard: restrict allowed CPU type to ARM Cortex-A8
The Cubieboard has an ARM Cortex-A8. Instead of simply ignoring a
bogus -cpu option provided by the user, give them an error message so
they know their command line is wrong.
Signed-off-by: Niek Linnenbank <nieklinnenbank@gmail.com>
Message-id:
20200227220149.6845-3-nieklinnenbank@gmail.com
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
[PMM: tweaked commit message]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>