hw/ssi/pl022: Use DeviceState::realize rather than SysBusDevice::init

Move from the legacy SysBusDevice::init method to using
DeviceState::realize.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-id: 20180820141116.9118-19-peter.maydell@linaro.org
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
1 file changed