We use the '-common.c' suffix for target agnostic units.
This file is target specific, rename it using the '-target'
suffix.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Anton Johansson <anjo@rev.ng>
Message-Id: <20230914185718.76241-6-philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>