ARM: dts: use #include for all device trees for Samsung

Replace /include/ (dtc) with #include (C pre-processor) for all
Samsung DT files

Signed-off-by: Padmavathi Venna <padma.v@samsung.com>
Reviewed-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Reviewed-by: Doug Anderson <dianders@chromium.org>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
diff --git a/arch/arm/boot/dts/exynos4210.dtsi b/arch/arm/boot/dts/exynos4210.dtsi
index d4f8067e..b7f358a 100644
--- a/arch/arm/boot/dts/exynos4210.dtsi
+++ b/arch/arm/boot/dts/exynos4210.dtsi
@@ -19,8 +19,8 @@
  * published by the Free Software Foundation.
 */
 
-/include/ "exynos4.dtsi"
-/include/ "exynos4210-pinctrl.dtsi"
+#include "exynos4.dtsi"
+#include "exynos4210-pinctrl.dtsi"
 
 / {
 	compatible = "samsung,exynos4210";