i386/acpi: make floppy controller object dynamic
Instead of statically declaring the floppy controller in DSDT, with its _STA method depending on some obscure bit in the parent ISA bridge, add the object dynamically to DSDT via AML API only when the controller is present. The _STA method is no longer necessary and is therefore dropped. So are the declarations of the fields indicating whether the contoller is enabled. Signed-off-by: NRoman Kagan <rkagan@virtuozzo.com> Signed-off-by: NIgor Mammedov <imammedo@redhat.com> Reviewed-by: NMarcel Apfelbaum <marcel@redhat.com> Cc: "Michael S. Tsirkin" <mst@redhat.com> Cc: John Snow <jsnow@redhat.com> Cc: Laszlo Ersek <lersek@redhat.com> Cc: Kevin O'Connor <kevin@koconnor.net> Reviewed-by: NMichael S. Tsirkin <mst@redhat.com> Signed-off-by: NMichael S. Tsirkin <mst@redhat.com>
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