This got left behind in the move of the CXL setup code from core
files to the machines that support it.

Link: https://gitlab.com/qemu-project/qemu/-/commit/1ebf9001fb2701e3c00b401334c8f3900a46adaa


Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Message-Id: <20220701132300.2264-2-Jonathan.Cameron@huawei.com>
Acked-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>