ARM: ux500: use #include syntax to include *.dtsi.

This patch prepares the use of '#define' into dts files.

Signed-off-by: Gabriel Fernandez <gabriel.fernandez@st.com>
Acked-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
diff --git a/arch/arm/boot/dts/hrefv60plus.dts b/arch/arm/boot/dts/hrefv60plus.dts
index 26f33a6f..b4b05df 100644
--- a/arch/arm/boot/dts/hrefv60plus.dts
+++ b/arch/arm/boot/dts/hrefv60plus.dts
@@ -10,9 +10,9 @@
  */
 
 /dts-v1/;
-/include/ "dbx5x0.dtsi"
-/include/ "href.dtsi"
-/include/ "stuib.dtsi"
+#include "dbx5x0.dtsi"
+#include "href.dtsi"
+#include "stuib.dtsi"
 
 / {
 	model = "ST-Ericsson HREF (v60+) platform with Device Tree";