ARM64: dts: meson-gx: Add AO CEC nodes

This patch adds the AO CEC node in all the HDMI enabled boards DTS.

Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
diff --git a/arch/arm64/boot/dts/amlogic/meson-gx.dtsi b/arch/arm64/boot/dts/amlogic/meson-gx.dtsi
index 70c479d..f49831e 100644
--- a/arch/arm64/boot/dts/amlogic/meson-gx.dtsi
+++ b/arch/arm64/boot/dts/amlogic/meson-gx.dtsi
@@ -378,6 +378,12 @@
 				};
 			};
 
+			cec_AO: cec@100 {
+				compatible = "amlogic,meson-gx-ao-cec";
+				reg = <0x0 0x00100 0x0 0x14>;
+				interrupts = <GIC_SPI 199 IRQ_TYPE_EDGE_RISING>;
+			};
+
 			sec_AO: ao-secure@140 {
 				compatible = "amlogic,meson-gx-ao-secure", "syscon";
 				reg = <0x0 0x140 0x0 0x140>;