fec_mxc don't use internal eeprom on MX25

Avoid using the internal eeprom on MX25 like MX51 already does.

Signed-off-by: John Rigby <jcrigby@gmail.com>
Signed-off-by: Ben Warren <biggerbadderben@gmail.com>

drivers/net/fec_mxc.c

@@ -314,9 +314,9 @@ static int fec_get_hwaddr(struct eth_device *dev, unsigned char *mac)
 {
 /*
  * The MX27 can store the mac address in internal eeprom
- * This mechanism is not supported now by MX51
+ * This mechanism is not supported now by MX51 or MX25
  */
-#ifdef CONFIG_MX51
+#if defined(CONFIG_MX51) || defined(CONFIG_MX25)
 	return -1;
 #else
 	struct iim_regs *iim = (struct iim_regs *)IMX_IIM_BASE;