acpi: ich9-smb: add support for AcpiDevAmlIf interface

wire AcpiDevAmlIf interface to build ich9-smb and its slave
devices AML. It will be used by followup patches to switch
from creating AML in ad-hoc way to a more systematic one
that will scan present devices and ask them to provide
their AML code like it's done with ISA devices.

This patch is a partial conversion, as it only fetches
AML from slave devices attached to its I2C bus.

The conversion will be completed when PCI bus is
switched to use AcpiDevAmlIf and build_smb0() could be
dropped.

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Acked-by: Gerd Hoffmann <kraxel@redhat.com>
Message-Id: <20220608135340.3304695-16-imammedo@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
1 file changed