target/arm/kvm: Have kvm_arm_set_device_attr take a ARMCPU argument

target/arm/kvm: Have kvm_arm_set_device_attr take a ARMCPU argument

Unify the "kvm_arm.h" API: All functions related to ARM vCPUs
take a ARMCPU* argument. Use the CPU() QOM cast macro When
calling the generic vCPU API from "sysemu/kvm.h".

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Gavin Shan <gshan@redhat.com>
Message-id: 20231123183518.64569-7-philmd@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>