ARM: mxs: read correct values when setting up MAC

Currently, the MAC address from the second ethernet is generated from the
crypto-key (and not a customer reg) because of a wrong index to the ocotp
array.
Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
Cc: Stefano Babic <sbabic@denx.de>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>

arch/arm/mach-mxs/mach-m28evk.c

@@ -255,7 +255,7 @@ static int __init m28evk_fec_get_mac(void)
 	 * so hard-code DENX OUI (C0:E5:4E) here.
 	 */
 	for (i = 0; i < 2; i++) {
-		val = ocotp[i * 4];
+		val = ocotp[i];
 		mx28_fec_pdata[i].mac[0] = 0xC0;
 		mx28_fec_pdata[i].mac[1] = 0xE5;
 		mx28_fec_pdata[i].mac[2] = 0x4E;

arch/arm/mach-mxs/mach-mx28evk.c

@@ -259,7 +259,7 @@ static int __init mx28evk_fec_get_mac(void)
 	 * so hard-code Freescale OUI (00:04:9f) here.
 	 */
 	for (i = 0; i < 2; i++) {
-		val = ocotp[i * 4];
+		val = ocotp[i];
 		mx28_fec_pdata[i].mac[0] = 0x00;
 		mx28_fec_pdata[i].mac[1] = 0x04;
 		mx28_fec_pdata[i].mac[2] = 0x9f;