imx: aristainetos: enable U-Boot Environment variables protection

enable Environment protection with:

CONFIG_ENV_APPEND=y
CONFIG_ENV_WRITEABLE_LIST=y
CONFIG_ENV_ACCESS_IGNORE_FORCE

and add board specific env_get_location()
function.

Signed-off-by: Heiko Schocher <hs@denx.de>
diff --git a/configs/aristainetos2ccslb_defconfig b/configs/aristainetos2ccslb_defconfig
index 16d3c88..0156493 100644
--- a/configs/aristainetos2ccslb_defconfig
+++ b/configs/aristainetos2ccslb_defconfig
@@ -1,7 +1,7 @@
 CONFIG_ARM=y
 CONFIG_ARCH_MX6=y
 CONFIG_SYS_TEXT_BASE=0x17800000
-CONFIG_SYS_MALLOC_F_LEN=0xe000
+CONFIG_SYS_MALLOC_F_LEN=0x13000
 CONFIG_NR_DRAM_BANKS=1
 CONFIG_ENV_OFFSET=0xD0000
 CONFIG_MX6DL=y
@@ -30,6 +30,8 @@
 # CONFIG_BOOTM_PLAN9 is not set
 # CONFIG_BOOTM_RTEMS is not set
 # CONFIG_BOOTM_VXWORKS is not set
+CONFIG_CMD_ENV_FLAGS=y
+CONFIG_CMD_NVEDIT_INFO=y
 # CONFIG_CMD_FLASH is not set
 CONFIG_CMD_GPIO=y
 CONFIG_CMD_I2C=y
@@ -54,10 +56,14 @@
 CONFIG_DTB_RESELECT=y
 CONFIG_MULTI_DTB_FIT=y
 CONFIG_ENV_OVERWRITE=y
+CONFIG_ENV_IS_NOWHERE=y
 CONFIG_ENV_IS_IN_SPI_FLASH=y
 CONFIG_ENV_SPI_EARLY=y
 CONFIG_SYS_REDUNDAND_ENVIRONMENT=y
 CONFIG_SYS_RELOC_GD_ENV_ADDR=y
+CONFIG_ENV_APPEND=y
+CONFIG_ENV_WRITEABLE_LIST=y
+CONFIG_ENV_ACCESS_IGNORE_FORCE=y
 CONFIG_VERSION_VARIABLE=y
 CONFIG_BOUNCE_BUFFER=y
 CONFIG_APBH_DMA=y
@@ -114,5 +120,7 @@
 CONFIG_VIDEO_IPUV3=y
 CONFIG_SPLASH_SCREEN=y
 CONFIG_SPLASH_SCREEN_ALIGN=y
+CONFIG_VIDEO_BMP_RLE8=y
+CONFIG_BMP_16BPP=y
 CONFIG_IMX_WATCHDOG=y
 # CONFIG_EFI_LOADER is not set