The model includes aspeed_scu.h but doesn't appear to require it.

Signed-off-by: Joel Stanley <joel@jms.id.au>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20230124062022.298230-1-joel@jms.id.au>
Signed-off-by: Cédric Le Goater <clg@kaod.org>