ASoC: tegra: Remove TEGRA_I2S_AUDIO from Kconfig

That config variable doesn't exist in the mainline kernel, and hence
the dependency shouldn't either.

In linux-tegra-2.6.36, the dependency did exist to avoid a conflict with
the old non-ALSA Tegra I2S driver. However, this isn't and won't be
upstreamed.
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

sound/soc/tegra/Kconfig

@@ -8,7 +8,6 @@ config SND_TEGRA_SOC
 config SND_TEGRA_SOC_I2S
 	tristate
 	depends on SND_TEGRA_SOC
-	depends on !TEGRA_I2S_AUDIO
 	default m
 	help
 	  Say Y or M if you want to add support for codecs attached to the