soc/intel/common: Make infrastructure ready for Intel common code

Select all Kconfig belongs into Intel SoC Family block/ips common
code model and include required header.h file.

Change-Id: Idbce59a57533dbeb9ccfadca966c3d7560537fa0
Signed-off-by: Subrata Banik <subrata.banik@intel.com>
Reviewed-on: https://review.coreboot.org/18377
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>

src/soc/intel/common/Kconfig

@@ -5,6 +5,10 @@ config SOC_INTEL_COMMON
 
 if SOC_INTEL_COMMON
 
+comment "Intel SoC Common Code"
+source "src/soc/intel/common/basecode/Kconfig"
+source "src/soc/intel/common/block/Kconfig"
+
 config CACHE_MRC_SETTINGS
 	bool "Save cached MRC settings"
 	default n