dtoverlays: ov9281: header and definition update

Author: omeredemen

arch/arm/boot/dts/overlays/ov9281-overlay.dts

@@ -1,8 +1,9 @@
 // SPDX-License-Identifier: GPL-2.0-only
-// Definitions for OV9281_trig camera module on VC I2C bus
+// Definitions for OV9281 camera module on VC I2C bus
 /dts-v1/;
 /plugin/;
 
+#include <dt-bindings/gpio/gpio.h>
 
 /{
 	compatible = "brcm,bcm2835";