arm: vf610: fix double iomux configuration for vf610twr board

Get rid of double VF610_PAD_DDR_A15__DDR_A_15 iomux configuration.

Signed-off-by: Marcel Ziswiler <marcel@ziswiler.com>
diff --git a/board/freescale/vf610twr/vf610twr.c b/board/freescale/vf610twr/vf610twr.c
index 699ea7f..4ee74c0 100644
--- a/board/freescale/vf610twr/vf610twr.c
+++ b/board/freescale/vf610twr/vf610twr.c
@@ -31,7 +31,6 @@
 {
 	static const iomux_v3_cfg_t ddr_pads[] = {
 		VF610_PAD_DDR_A15__DDR_A_15,
-		VF610_PAD_DDR_A15__DDR_A_15,
 		VF610_PAD_DDR_A14__DDR_A_14,
 		VF610_PAD_DDR_A13__DDR_A_13,
 		VF610_PAD_DDR_A12__DDR_A_12,