ASoC: Intel: bdw-rt5677: fix Kconfig dependencies

The existing machine driver depends on SPI Master capabilities, but
the Kconfig does not model this dependency and the SPI controller
needs to be selected as well.

Without this patch the machine driver probe would fail with the
spi-RT5677AA:00 component never registered by the ACPI/LPSS subsystem.
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20200110235751.3404-2-pierre-louis.bossart@linux.intel.comSigned-off-by: Mark Brown <broonie@kernel.org>

sound/soc/intel/boards/Kconfig

@@ -62,6 +62,9 @@ config SND_SOC_INTEL_BDW_RT5677_MACH
 	depends on I2C_DESIGNWARE_PLATFORM || COMPILE_TEST
 	depends on GPIOLIB || COMPILE_TEST
 	depends on X86_INTEL_LPSS || COMPILE_TEST
+	depends on SPI_MASTER
+	select SPI_PXA2XX
+	select SND_SOC_RT5677_SPI
 	select SND_SOC_RT5677
 	help
 	  This adds support for Intel Broadwell platform based boards with