arm64: dts: mediatek: cherry: Add Audio Front End (AFE) support

In preparation for adding audio support, enable the AFE HW with
the appropriate eTDM configuration and memory region.
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Link: https://lore.kernel.org/r/20220922094908.41623-2-angelogioacchino.delregno@collabora.comSigned-off-by: Matthias Brugger <matthias.bgg@gmail.com>

arch/arm64/boot/dts/mediatek/mt8195-cherry.dtsi

@@ -117,9 +117,23 @@ scp_mem: memory@50000000 {
 			reg = <0 0x50000000 0 0x2900000>;
 			no-map;
 		};
+
+		afe_mem: memory@60d80000 {
+			compatible = "shared-dma-pool";
+			reg = <0 0x60d80000 0 0x100000>;
+			no-map;
+		};
 	};
 };
 
+&afe {
+	status = "okay";
+
+	mediatek,etdm-in2-cowork-source = <2>;
+	mediatek,etdm-out2-cowork-source = <0>;
+	memory-region = <&afe_mem>;
+};
+
 &dp_intf0 {
 	status = "okay";