ARM: dts: sunxi: Add codec for A13 Olinuxino

The A13 Olinuxino have an headphone jack and audio is supported
so enable it.
Signed-off-by: NEmmanuel Vadot <manu@freebsd.org>
Signed-off-by: NMaxime Ripard <maxime.ripard@free-electrons.com>

arch/arm/boot/dts/sun5i-a13-olinuxino.dts

@@ -114,6 +114,10 @@
 	status = "okay";
 };
 
+&codec {
+	status = "okay";
+};
+
 &ehci0 {
 	status = "okay";
 };