mx6ul_14x14_evk: Avoid overlap of environment over U-Boot proper

We need to change the environment offset to avoid corrupting the U-Boot
binary when saving it.

Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
Reviewed-by: Fabio Estevam <festevam@gmail.com>
diff --git a/configs/mx6ul_14x14_evk_defconfig b/configs/mx6ul_14x14_evk_defconfig
index cad7664..4ec5f80 100644
--- a/configs/mx6ul_14x14_evk_defconfig
+++ b/configs/mx6ul_14x14_evk_defconfig
@@ -5,7 +5,7 @@
 CONFIG_SPL_LIBCOMMON_SUPPORT=y
 CONFIG_SPL_LIBGENERIC_SUPPORT=y
 CONFIG_ENV_SIZE=0x2000
-CONFIG_ENV_OFFSET=0x80000
+CONFIG_ENV_OFFSET=0xC0000
 CONFIG_TARGET_MX6UL_14X14_EVK=y
 CONFIG_DM_GPIO=y
 CONFIG_SPL_MMC_SUPPORT=y