Config changes to support microcode in CBFS

Nothing is yet enabled, this is just a config skeleton change.

The MICROCODE_INCLUDE_PATH definition is going to be used by the
Makefile building the microcode blob for CBFS inclusion.

Change-Id: I7868db3cfd4b181500e361706e5f4dc08ca1c87d
Signed-off-by: Vadim Bendebury <vbendeb@chromium.org>
Reviewed-on: http://review.coreboot.org/1292
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>

src/cpu/intel/model_206ax/Kconfig

@@ -21,6 +21,12 @@ config SMM_TSEG_SIZE
 	hex
 	default 0x800000
 
+if MICROCODE_IN_CBFS
+config MICROCODE_INCLUDE_PATH
+	string
+	default "src/cpu/intel/model_206ax"
+endif
+
 endif
 
 if CPU_INTEL_MODEL_206AX