xilinx: fix names of ethernet and dma links.

These names were incorrect. Fixed to match to actual link names

Signed-off-by: Peter A. G. Crosthwaite <peter.crosthwaite@petalogix.com>

hw/xilinx.h

diff --git a/hw/xilinx.h b/hw/xilinx.h
index 4d29265..9830047 100644
--- a/hw/xilinx.h
+++ b/hw/xilinx.h
@@ -63,7 +63,8 @@
     qdev_set_nic_properties(dev, nd);
     qdev_prop_set_uint32(dev, "rxmem", rxmem);
     qdev_prop_set_uint32(dev, "txmem", txmem);
-    object_property_set_link(OBJECT(dev), OBJECT(peer), "tx_dev", &errp);
+    object_property_set_link(OBJECT(dev), OBJECT(peer), "axistream-connected",
+                             &errp);
     assert_no_error(errp);
     qdev_init_nofail(dev);
     sysbus_mmio_map(sysbus_from_qdev(dev), 0, base);
@@ -80,7 +81,8 @@
     Error *errp = NULL;
 
     qdev_prop_set_uint32(dev, "freqhz", freqhz);
-    object_property_set_link(OBJECT(dev), OBJECT(peer), "tx_dev", &errp);
+    object_property_set_link(OBJECT(dev), OBJECT(peer), "axistream-connected",
+                             &errp);
     assert_no_error(errp);
     qdev_init_nofail(dev);