ASoC: tegra: Staticise tegra_i2s_dai and tegra_spdif_dai

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

sound/soc/tegra/tegra_i2s.c

@@ -312,7 +312,7 @@ static struct snd_soc_dai_ops tegra_i2s_dai_ops = {
 	.trigger	= tegra_i2s_trigger,
 };
 
-struct snd_soc_dai_driver tegra_i2s_dai[] = {
+static struct snd_soc_dai_driver tegra_i2s_dai[] = {
 	{
 		.name = DRV_NAME ".0",
 		.probe = tegra_i2s_probe,

sound/soc/tegra/tegra_spdif.c

@@ -232,7 +232,7 @@ static struct snd_soc_dai_ops tegra_spdif_dai_ops = {
 	.trigger	= tegra_spdif_trigger,
 };
 
-struct snd_soc_dai_driver tegra_spdif_dai = {
+static struct snd_soc_dai_driver tegra_spdif_dai = {
 	.name = DRV_NAME,
 	.probe = tegra_spdif_probe,
 	.playback = {