ARM: dts: sun7i: Enable audio codec on Banana Pro

This commit enables the on-chip audio codec present on the A20 SoC
on the Banana Pro board.

Signed-off-by: Jörg Krause <joerg.krause@embedded.rocks>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>

arch/arm/boot/dts/sun7i-a20-bananapro.dts

@@ -104,6 +104,10 @@
 	status = "okay";
 };
 
+&codec {
+	status = "okay";
+};
+
 &ehci0 {
 	status = "okay";
 };