fix(dt-bindings): fix static checks

This patch fixes static checks errors reported for missing copyright in
`include/dt-bindings/interrupt-controller/arm-gic.h` and the include
order of header files in `.dts` and `.dtsi` files.

Change-Id: I2baaf2719fd2c84cbcc08a8f0c4440a17a9f24f6
Signed-off-by: Alexei Fedorov <Alexei.Fedorov@arm.com>
Signed-off-by: Chris Kay <chris.kay@arm.com>
diff --git a/fdts/fvp-foundation-gicv2-psci.dts b/fdts/fvp-foundation-gicv2-psci.dts
index 7dd9afd..5a82c46 100644
--- a/fdts/fvp-foundation-gicv2-psci.dts
+++ b/fdts/fvp-foundation-gicv2-psci.dts
@@ -11,8 +11,8 @@
 #define	AFF
 #define	CLUSTER_COUNT	1
 
-#include "fvp-defs.dtsi"
 #include <dt-bindings/interrupt-controller/arm-gic.h>
+#include "fvp-defs.dtsi"
 
 /memreserve/ 0x80000000 0x00010000;