board: laird: add WB50N CPU module

This board is based on the Atmel sama5d3 eval boards.
Supporting the following features:
 - Boot from NAND Flash
 - Ethernet
 - FIT
 - SPL

Signed-off-by: Ben Whitten <ben.whitten@lairdtech.com>
Signed-off-by: Dan Kephart <dan.kephart@lairdtech.com>
diff --git a/board/laird/wb50n/Makefile b/board/laird/wb50n/Makefile
new file mode 100644
index 0000000..d1b6cfa
--- /dev/null
+++ b/board/laird/wb50n/Makefile
@@ -0,0 +1,6 @@
+#
+#
+# SPDX-License-Identifier:	GPL-2.0+
+#
+
+obj-y += wb50n.o