hw/sd/sdcard: Add sd_invalid_mode_for_cmd to report invalid mode switch Having the mode switch displayed help to track incomplete command implementations. Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Cédric Le Goater <clg@redhat.com> Tested-by: Cédric Le Goater <clg@redhat.com> Message-Id: <20240621080554.18986-19-philmd@linaro.org>