ARM: tegra: paz00: Enable S/PDIF and HDMI audio

Enable S/PDIF controller to enable HDMI audio support on Toshiba AC100.
Use nvidia,fixed-parent-rate property that prevents audio rate conflict
between S/PDIF and I2S.

Tested-by: Agneli <[email protected]>
Signed-off-by: Dmitry Osipenko <[email protected]>
Signed-off-by: Thierry Reding <[email protected]>

Author: digetx

arch/arm/boot/dts/tegra20-paz00.dts

@@ -264,8 +264,16 @@
 		};
 	};
 
+	spdif@70002400 {
+		status = "okay";
+
+		nvidia,fixed-parent-rate;
+	};
+
 	i2s@70002800 {
 		status = "okay";
+
+		nvidia,fixed-parent-rate;
 	};
 
 	serial@70006000 {