tilegx net: use eth_hw_addr_random(), not eth_random_addr()

Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
diff --git a/drivers/net/ethernet/tile/tilegx.c b/drivers/net/ethernet/tile/tilegx.c
index ac4a904..4e2a162 100644
--- a/drivers/net/ethernet/tile/tilegx.c
+++ b/drivers/net/ethernet/tile/tilegx.c
@@ -1851,7 +1851,7 @@
 		memcpy(dev->dev_addr, mac, 6);
 		dev->addr_len = 6;
 	} else {
-		eth_random_addr(dev->dev_addr);
+		eth_hw_addr_random(dev);
 	}
 
 	/* Register the network device. */