ACPI: Avoid infinite recursion when dump-vmstate

ACPI: Avoid infinite recursion when dump-vmstate

There is a field with vmstate_ghes_state as vmsd in vmstate_ghes_state,
which will lead to infinite recursion in dump_vmstate_vmsd.

Fixes: a08a64627b ("ACPI: Record the Generic Error Status Block address")
Reported-by: Euler Robot <euler.robot@huawei.com>
Signed-off-by: Peng Liang <liangpeng10@huawei.com>
Acked-by: Igor Mammedov <imammedo@redhat.com>
Message-Id: <20201112020638.874515-1-liangpeng10@huawei.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>