kconfig: autoslect machine symbol from SST

same should be done for SOF eventually as well.
also rename the menu to Intel Machine.. since this no longer appears under
Intel SST.

Signed-off-by: Vinod Koul <vinod.koul@intel.com>
diff --git a/sound/soc/intel/Kconfig b/sound/soc/intel/Kconfig
index 6b6fdb3..c0a19f4 100644
--- a/sound/soc/intel/Kconfig
+++ b/sound/soc/intel/Kconfig
@@ -2,6 +2,7 @@
 	bool "Intel ASoC SST drivers"
 	default y
 	depends on X86 || COMPILE_TEST
+	select SND_SOC_INTEL_MACH
 	help
 	  Intel ASoC SST Platform Drivers. If you have a Intel machine that
 	  has an audio controller with a DSP and I2S or DMIC port, then
diff --git a/sound/soc/intel/boards/Kconfig b/sound/soc/intel/boards/Kconfig
index 47b9bb9..4b35389 100644
--- a/sound/soc/intel/boards/Kconfig
+++ b/sound/soc/intel/boards/Kconfig
@@ -1,5 +1,5 @@
 menuconfig SND_SOC_INTEL_MACH
-	bool "Machine drivers"
+	bool "Intel Machine drivers"
 	depends on SND_SOC_INTEL_SST_TOPLEVEL
 	help
          Intel ASoC Machine Drivers. If you have a Intel machine that