ARM: dts: sun8i: h3: beelink-x2: Add GPIO CEC node

Beelink X2 doesn't use HW CEC controller found in DW HDMI core. It has
dedicated GPIO pin for that purpose.

Add a node for it.

Signed-off-by: Jernej Skrabec <[e-mail]>
Signed-off-by: Maxime Ripard <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]

arch/arm/boot/dts/sun8i-h3-beelink-x2.dts

···
 		ethernet1 = &sdiowifi;
 	};
 
+	cec-gpio {
+		compatible = "cec-gpio";
+		cec-gpios = <&pio 0 14 (GPIO_ACTIVE_HIGH|GPIO_OPEN_DRAIN)>; /* PA14 */
+		hdmi-phandle = <&hdmi>;
+	};
+
 	chosen {
 		stdout-path = "serial0:115200n8";
 	};