armv8: ls1088ardb: Add support for LS1088ARDB platform

LS1088A is an ARMv8 implementation. The LS1088ARDB is an evaluatoin
platform that supports the LS1088A family SoCs. This patch add basic
support of the platform.

Signed-off-by: Alison Wang <alison.wang@nxp.com>
Signed-off-by: Prabhakar Kushwaha <prabhakar.kushwaha@nxp.com>
Signed-off-by: Ashish Kumar <Ashish.Kumar@nxp.com>
Signed-off-by: Raghav Dogra <raghav.dogra@nxp.com>
Signed-off-by: Shaohui Xie <Shaohui.Xie@nxp.com>
[YS: Disabled NAND in board header file]
Reviewed-by: York Sun <york.sun@nxp.com>

WIP: disable NAND for LS1088ARDB
diff --git a/board/freescale/ls1088a/MAINTAINERS b/board/freescale/ls1088a/MAINTAINERS
new file mode 100644
index 0000000..12834f6
--- /dev/null
+++ b/board/freescale/ls1088a/MAINTAINERS
@@ -0,0 +1,7 @@
+LS1088ARDB BOARD
+M:	Prabhakar Kushwaha <prabhakar.kushwaha@nxp.com>
+M:	Ashish Kumar <Ashish.Kumar@nxp.com>
+S:	Maintained
+F:	board/freescale/ls1088a/
+F:	include/configs/ls1088ardb.h
+F:	configs/ls1088ardb_qspi_defconfig