mx6qsabreauto: Return from cpu_eth_init() directly

There is no need to print an error message when cpu_eth_init() fails because
net/eth.c already prints it.

In order to simplify the code, just return the value from cpu_eth_init(bis)
directly.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>

board/freescale/mx6qsabreauto/mx6qsabreauto.c

@@ -192,15 +192,9 @@ int board_phy_config(struct phy_device *phydev)
 
 int board_eth_init(bd_t *bis)
 {
-	int ret;
-
 	setup_iomux_enet();
 
-	ret = cpu_eth_init(bis);
-	if (ret)
-		printf("FEC MXC: %s:failed\n", __func__);
-
-	return ret;
+	return cpu_eth_init(bis);
 }
 
 #define BOARD_REV_B  0x200