arm64: dts: meson: g12a: add tohdmitx

Add the hdmitx glue device linking the SoC audio interfaces to the
embedded Synopsys hdmi controller.
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>

arch/arm64/boot/dts/amlogic/meson-g12a.dtsi

@@ -1619,6 +1619,14 @@ spdifout_b: audio-controller@680 {
 					clock-names = "pclk", "mclk";
 					status = "disabled";
 				};
+
+				tohdmitx: audio-controller@744 {
+					compatible = "amlogic,g12a-tohdmitx";
+					reg = <0x0 0x744 0x0 0x4>;
+					#sound-dai-cells = <1>;
+					sound-name-prefix = "TOHDMITX";
+					status = "disabled";
+				};
 			};
 
 			usb3_pcie_phy: phy@46000 {