ARM: dts: OMAP2+: Use #include for all device trees

Replace /include/ by #include for OMAP2+ DT, in order to use the
C pre-processor, making use of #define features possible.

Signed-off-by: Florian Vaussard <florian.vaussard@epfl.ch>
Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Reviewed-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Benoit Cousson <benoit.cousson@linaro.org>

arch/arm/boot/dts/omap3-evm.dts

@@ -7,7 +7,7 @@
  */
 /dts-v1/;
 
-/include/ "omap34xx.dtsi"
+#include "omap34xx.dtsi"
 
 / {
 	model = "TI OMAP3 EVM (OMAP3530, AM/DM37x)";
@@ -44,7 +44,7 @@
 	};
 };
 
-/include/ "twl4030.dtsi"
+#include "twl4030.dtsi"
 
 &i2c2 {
 	clock-frequency = <400000>;