metag: *.dts: include using preprocessor

Include *.dtsi files from *.dts using the preprocessor to set a good
example for future device tree files. Files included in the old way
don't get pre-processed.

Signed-off-by: James Hogan <james.hogan@imgtec.com>
Acked-by: Grant Likely <grant.likely@linaro.org>
Cc: devicetree-discuss@lists.ozlabs.org

arch/metag/boot/dts/skeleton.dts

@@ -7,4 +7,4 @@
  */
 /dts-v1/;
 
-/include/ "skeleton.dtsi"
+#include "skeleton.dtsi"

arch/metag/boot/dts/tz1090.dtsi

@@ -6,7 +6,7 @@
  * published by the Free Software Foundation.
  */
 
-/include/ "skeleton.dtsi"
+#include "skeleton.dtsi"
 
 / {
 	compatible = "toumaz,tz1090", "img,meta";

arch/metag/boot/dts/tz1090_generic.dts

@@ -7,4 +7,4 @@
  */
 /dts-v1/;
 
-/include/ "tz1090.dtsi"
+#include "tz1090.dtsi"