arm64: dts: stratix10: add gpio header

Add the gpio header to the base stratix10 dtsi.
Signed-off-by: Alan Tull <atull@kernel.org>
Signed-off-by: Dinh Nguyen <dinguyen@kernel.org>

arch/arm64/boot/dts/altera/socfpga_stratix10.dtsi

@@ -16,6 +16,7 @@
 
 /dts-v1/;
 #include <dt-bindings/reset/altr,rst-mgr-s10.h>
+#include <dt-bindings/gpio/gpio.h>
 
 / {
 	compatible = "altr,socfpga-stratix10";