intel/model_206ax: Move platform specific defines

Change-Id: I3c517fc55dd333b1a457324f1d69aeb6f70acec2
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/15197
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Tested-by: Raptor Engineering Automated Test Stand <noreply@raptorengineeringinc.com>

src/northbridge/intel/sandybridge/sandybridge.h

@@ -196,6 +196,12 @@
 
 #define DMIDRCCFG	0xeb4	/* 32bit */
 
+/* Delegation of resume backup memory so we don't have to
+ * (slowly) handle backing up OS memory in romstage.c
+ */
+#define CBMEM_BOOT_MODE		0x610
+#define CBMEM_RESUME_BACKUP	0x614
+
 #ifndef __ASSEMBLER__
 static inline void barrier(void) { asm("" ::: "memory"); }