target/arm: Rename arm_cpu_mp_affinity

Rename to arm_build_mp_affinity.  This frees up the name for
other usage, and emphasizes that the cpu object is not involved.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20240118200643.29037-9-philmd@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
5 files changed