Moved initialization of MCFFEC Ethernet driver to CPU directory

Added a cpu_eth_init() function to coldfire CPU directories and
removed code from net/eth.c

Signed-off-by: Ben Warren <biggerbadderben@gmail.com>
diff --git a/drivers/net/mcffec.c b/drivers/net/mcffec.c
index 58ed5e3..6e69b46 100644
--- a/drivers/net/mcffec.c
+++ b/drivers/net/mcffec.c
@@ -599,5 +599,5 @@
 	/* default speed */
 	bis->bi_ethspeed = 10;
 
-	return 1;
+	return 0;
 }