armv8/ls1043ardb: add SECURE BOOT target for NOR

LS1043ARDB Secure Boot Target from NOR has been added.
- Configs defined to enable esbc_validate.
- ESBC Address in header is made 64 bit.
- SMMU is re-configured in Bypass mode.

Signed-off-by: Aneesh Bansal <aneesh.bansal@freescale.com>
Reviewed-by: York Sun <yorksun@freescale.com>
diff --git a/board/freescale/ls1043ardb/MAINTAINERS b/board/freescale/ls1043ardb/MAINTAINERS
index efca5bf..84ffb63 100644
--- a/board/freescale/ls1043ardb/MAINTAINERS
+++ b/board/freescale/ls1043ardb/MAINTAINERS
@@ -7,3 +7,8 @@
 F:	configs/ls1043ardb_defconfig
 F:	configs/ls1043ardb_nand_defconfig
 F:	configs/ls1043ardb_sdcard_defconfig
+
+LS1043A_SECURE_BOOT BOARD
+M:	Aneesh Bansal <aneesh.bansal@freescale.com>
+S:	Maintained
+F:	configs/ls1043ardb_SECURE_BOOT_defconfig