ACPI 6.0 added a processor efficiency field and 3 reserved bytes at the
end of the GICC structure so add a new macro to initialise the new
field.
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Graeme Gregory <graeme.gregory@linaro.org>
Reviewed-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>