Convert CONFIG_LAYERSCAPE_NS_ACCESS to Kconfig

This converts the following to Kconfig:
   CONFIG_LAYERSCAPE_NS_ACCESS

Signed-off-by: Tom Rini <trini@konsulko.com>
diff --git a/configs/ls1021aiot_sdcard_defconfig b/configs/ls1021aiot_sdcard_defconfig
index d34897a..df6ce92 100644
--- a/configs/ls1021aiot_sdcard_defconfig
+++ b/configs/ls1021aiot_sdcard_defconfig
@@ -14,12 +14,13 @@
 CONFIG_DM_GPIO=y
 CONFIG_DEFAULT_DEVICE_TREE="ls1021a-iot-duart"
 CONFIG_SPL_TEXT_BASE=0x10000000
-# CONFIG_DEEP_SLEEP is not set
 CONFIG_SPL_MMC=y
 CONFIG_SPL_SERIAL=y
 CONFIG_SPL=y
 CONFIG_SYS_LOAD_ADDR=0x82000000
 CONFIG_AHCI=y
+# CONFIG_DEEP_SLEEP is not set
+CONFIG_LAYERSCAPE_NS_ACCESS=y
 CONFIG_OF_BOARD_SETUP=y
 CONFIG_OF_STDOUT_VIA_ALIAS=y
 CONFIG_RAMBOOT_PBL=y