redhat/configs: automotive: Turn off ACPI Processor package for aarch64

Allowing the cpu to enter idle states can/will introduce (non-deterministic) latency. This is undesired for the automotive use case. Since ACPI_PROCESSOR selects unconditionally CPU_IDLE, we also need to disable the ACPI Processor package. For aarch64 architecture this should be fine as all the automotive platforms supported are Non-ACPI Compliant.

Signed-off-by: Enric Balletbo i Serra eballetb@redhat.com