armv8: ls1012a: Add support of ls1012ardb board

QorIQ LS1012A Reference Design System (LS1012ARDB) is a high-performance
development platform, with a complete debugging environment.
The LS1012ARDB board supports the QorIQ LS1012A processor and is
optimized to support the high-bandwidth DDR3L memory and
a full complement of high-speed SerDes ports.

Signed-off-by: Calvin Johnson <calvin.johnson@nxp.com>
Signed-off-by: Pratiyush Mohan Srivastava <pratiyush.srivastava@nxp.com>
Signed-off-by: Prabhakar Kushwaha <prabhakar.kushwaha@nxp.com>
Reviewed-by: York Sun <york.sun@nxp.com>
diff --git a/arch/arm/dts/fsl-ls1012a-rdb.dts b/arch/arm/dts/fsl-ls1012a-rdb.dts
new file mode 100644
index 0000000..f683812
--- /dev/null
+++ b/arch/arm/dts/fsl-ls1012a-rdb.dts
@@ -0,0 +1,16 @@
+/*
+ * Device Tree file for Freescale Layerscape-1012A family SoC.
+ *
+ * Copyright 2016, Freescale Semiconductor
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+/dts-v1/;
+#include "fsl-ls1012a-rdb.dtsi"
+
+/ {
+       chosen {
+               stdout-path = &duart0;
+       };
+};