ARM: dts: imx27-phytec-phycore-som: Rename file to .dtsi

PCM-038 module cannot be used standalone. This patch renames
module file to .dtsi and excludes it from compilation.
Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>

arch/arm/boot/dts/Makefile

@@ -139,7 +139,6 @@ dtb-$(CONFIG_ARCH_MXC) += \
 	imx27-apf27.dtb \
 	imx27-apf27dev.dtb \
 	imx27-pdk.dtb \
-	imx27-phytec-phycore-som.dtb \
 	imx27-phytec-phycore-rdk.dtb \
 	imx27-phytec-phycard-s-som.dtb \
 	imx27-phytec-phycard-s-rdk.dtb \

arch/arm/boot/dts/imx27-phytec-phycore-rdk.dts

@@ -7,7 +7,7 @@
  * http://www.gnu.org/copyleft/gpl.html
  */
 
-#include "imx27-phytec-phycore-som.dts"
+#include "imx27-phytec-phycore-som.dtsi"
 
 / {
 	model = "Phytec pcm970";