davinci: fix remaining dm644x_eth

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
diff --git a/net/eth.c b/net/eth.c
index c35c57b..85fa0da 100644
--- a/net/eth.c
+++ b/net/eth.c
@@ -576,7 +576,7 @@
 extern int emac4xx_miiphy_initialize(bd_t *bis);
 extern int mcf52x2_miiphy_initialize(bd_t *bis);
 extern int ns7520_miiphy_initialize(bd_t *bis);
-extern int dm644x_eth_miiphy_initialize(bd_t *bis);
+extern int davinci_eth_miiphy_initialize(bd_t *bis);
 
 
 int eth_initialize(bd_t *bis)