armv8: ls1012ardb: Add TFABOOT support

TFABOOT support includes:
 - ls1012ardb_tfa_defconfig to be loaded by trusted firmware
 - environment address and size changes for TFABOOT
 - define BOOTCOMMAND for TFABOOT
 - enable PFE validation for secure boot

Signed-off-by: Rajesh Bhagat <rajesh.bhagat@nxp.com>
Signed-off-by: Vinitha V Pillai <vinitha.pillai@nxp.com>
Signed-off-by: Pankit Garg <pankit.garg@nxp.com>
Reviewed-by: York Sun <york.sun@nxp.com>
diff --git a/board/freescale/ls1012ardb/MAINTAINERS b/board/freescale/ls1012ardb/MAINTAINERS
index a0a0d8d..bb2a183 100644
--- a/board/freescale/ls1012ardb/MAINTAINERS
+++ b/board/freescale/ls1012ardb/MAINTAINERS
@@ -1,9 +1,11 @@
 LS1012ARDB BOARD
 M:	Prabhakar Kushwaha <prabhakar.kushwaha@nxp.com>
+M:	Rajesh Bhagat <rajesh.bhagat@nxp.com>
 S:	Maintained
 F:	board/freescale/ls1012ardb/
 F:	include/configs/ls1012ardb.h
 F:	configs/ls1012ardb_qspi_defconfig
+F:	configs/ls1012ardb_tfa_defconfig
 
 M:	Sumit Garg <sumit.garg@nxp.com>
 S:	Maintained