imx6: fix GPR2 wrong definition

Signed-off-by: Pierre Aubert <p.aubert@staubli.com>
CC: Stefano Babic <sbabic@denx.de>
Acked-by: Dirk Behme <dirk.behme@gmail.com>

arch/arm/include/asm/arch-mx6/imx-regs.h

@@ -364,7 +364,7 @@ struct iomuxc {
 
 #define IOMUXC_GPR2_MODE_DISABLED	0
 #define IOMUXC_GPR2_MODE_ENABLED_DI0	1
-#define IOMUXC_GPR2_MODE_ENABLED_DI1	2
+#define IOMUXC_GPR2_MODE_ENABLED_DI1	3
 
 #define IOMUXC_GPR2_LVDS_CH1_MODE_OFFSET		2
 #define IOMUXC_GPR2_LVDS_CH1_MODE_MASK			(3<<IOMUXC_GPR2_LVDS_CH1_MODE_OFFSET)