x86: Add init for model 206AX CPU

Add the setup code for the CPU so that it can be used at full speed.

Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/arch/x86/cpu/ivybridge/Makefile b/arch/x86/cpu/ivybridge/Makefile
index aedc395..95491b5 100644
--- a/arch/x86/cpu/ivybridge/Makefile
+++ b/arch/x86/cpu/ivybridge/Makefile
@@ -11,6 +11,7 @@
 obj-y += early_me.o
 obj-y += lpc.o
 obj-y += me_status.o
+obj-y += model_206ax.o
 obj-y += microcode_intel.o
 obj-y += pch.o
 obj-y += pci.o