acpi: Add fill_madt to acpi_ops

Add a new method to acpi_ops to let drivers fill out ACPI MADT.
The code is unused for now until drivers implement the new ops.

TEST: Booted on QEMU sbsa using driver model generated MADT.

Signed-off-by: Patrick Rudolph <patrick.rudolph@9elements.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Cc: Simon Glass <sjg@chromium.org>
5 files changed