Prepapre for new board revision

Change-Id: I475d6f1f2617ab6aa783e80cdef909c0c633429d
diff --git a/board/czechlight/clearfog/sdn-roadm-add-drop-g2-clearfog.dts b/board/czechlight/clearfog/sdn-roadm-add-drop-g2-clearfog.dts
new file mode 100644
index 0000000..39f5e7a
--- /dev/null
+++ b/board/czechlight/clearfog/sdn-roadm-add-drop-g2-clearfog.dts
@@ -0,0 +1 @@
+#include "sdn-roadm-clearfog.dtsi"