char/grlib_apbuart: Convert sysbus init function to realize function
Use DeviceClass rather than SysBusDeviceClass in
grlib_apbuart_class_init().
Cc: chouteau@adacore.com
Cc: marcandre.lureau@redhat.com
Cc: pbonzini@redhat.com
Signed-off-by: Mao Zhongyi <maozhongyi@cmss.chinamobile.com>
Signed-off-by: Zhang Shengju <zhangshengju@cmss.chinamobile.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-id:
20181130093852.20739-4-maozhongyi@cmss.chinamobile.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>