ASoC: Intel: Skylake: mark HDAudio codec support as deprecated.

This option famously broke audio on Linus' laptop and the problem have
not been fixed.

Mark as DEPRECATED to avoid any ambiguity with distros.

Use SOF if you need HDaudio support w/ the DSP enabled, e.g. for DMIC
capture.
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20191101173045.27099-8-pierre-louis.bossart@linux.intel.comSigned-off-by: Mark Brown <broonie@kernel.org>

sound/soc/intel/Kconfig

@@ -209,9 +209,12 @@ config SND_SOC_INTEL_SKYLAKE_SSP_CLK
 config SND_SOC_INTEL_SKYLAKE_HDAUDIO_CODEC
 	bool "HDAudio codec support"
 	help
-	  If you have a Intel Skylake/Broxton/ApolloLake/KabyLake/
-	  GeminiLake or CannonLake platform with an HDaudio codec
-	  then enable this option by saying Y
+	  This option broke audio on Linus' Skylake laptop in December 2018
+	  and the race conditions during the probe were not fixed since.
+	  This option is DEPRECATED, all HDaudio codec support needs
+	  to be handled by the SOF driver.
+	  Distributions should not enable this option and there are no known
+	  users of this capability.
 
 config SND_SOC_INTEL_SKYLAKE_COMMON
 	tristate