ASoC: Intel: Add new dependency for Broadwell machine

I2C support for the RT286 codec is provided through the Designware I2C
platform adapter in this machine. Thus, the adapter driver must be present.
Signed-off-by: NRicardo Neri <ricardo.neri-calderon@linux.intel.com>
Signed-off-by: NMark Brown <broonie@kernel.org>

sound/soc/intel/Kconfig

@@ -65,7 +65,8 @@ config SND_SOC_INTEL_BYT_MAX98090_MACH
 
 config SND_SOC_INTEL_BROADWELL_MACH
 	tristate "ASoC Audio DSP support for Intel Broadwell Wildcatpoint"
-	depends on SND_SOC_INTEL_SST && X86_INTEL_LPSS && DW_DMAC
+	depends on SND_SOC_INTEL_SST && X86_INTEL_LPSS && DW_DMAC && \\
+		   I2C_DESIGNWARE_PLATFORM
 	select SND_SOC_INTEL_HASWELL
 	select SND_COMPRESS_OFFLOAD
 	select SND_SOC_RT286