Moved initialization of PPC4xx EMAC to cpu_eth_init()

Removed initialization of the driver from net/eth.c

Signed-off-by: Ben Warren <biggerbadderben@gmail.com>
Acked-by: Stefan Roese <sr@denx.de>
diff --git a/include/netdev.h b/include/netdev.h
index 45e59b6..751f0da 100644
--- a/include/netdev.h
+++ b/include/netdev.h
@@ -62,6 +62,7 @@
 int ns8382x_initialize(bd_t *bis);
 int pcnet_initialize(bd_t *bis);
 int plb2800_eth_initialize(bd_t *bis);
+int ppc_4xx_eth_initialize (bd_t *bis);
 int rtl8139_initialize(bd_t *bis);
 int rtl8169_initialize(bd_t *bis);
 int scc_initialize(bd_t *bis);