ARM: kirkwood: use dts pre-processor for nsa310 boards

Signed-off-by: Jason Cooper <jason@lakedaemon.net>

arch/arm/boot/dts/kirkwood-nsa310-common.dtsi

@@ -1,5 +1,5 @@
-/include/ "kirkwood.dtsi"
-/include/ "kirkwood-6281.dtsi"
+#include "kirkwood.dtsi"
+#include "kirkwood-6281.dtsi"
 
 / {
 	model = "ZyXEL NSA310";

arch/arm/boot/dts/kirkwood-nsa310.dts

@@ -1,6 +1,6 @@
 /dts-v1/;
 
-/include/ "kirkwood-nsa310-common.dtsi"
+#include "kirkwood-nsa310-common.dtsi"
 
 / {
 	compatible = "zyxel,nsa310", "marvell,kirkwood-88f6281", "marvell,kirkwood";

arch/arm/boot/dts/kirkwood-nsa310a.dts

@@ -1,6 +1,6 @@
 /dts-v1/;
 
-/include/ "kirkwood-nsa310-common.dtsi"
+#include "kirkwood-nsa310-common.dtsi"
 
 /*
  * There are at least two different NSA310 designs. This variant does