Intel Sandybridge: add reserved memory as resources

Reserved memory resources will get removed from memory table at
the end of write_coreboot_table(),

Change-Id: I02711b4be4f25054bd3361295d8d4dc996b2eb3e
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/1372
Tested-by: build bot (Jenkins)
Reviewed-by: Anton Kochkov <anton.kochkov@gmail.com>

src/cpu/x86/mtrr/mtrr.c

@@ -361,6 +361,10 @@ void set_var_mtrr_resource(void *gp, struct device *dev, struct resource *res)
 		return;
 	}
 
+	if (res->flags & IORESOURCE_IGNORE_MTRR) {
+		return;
+	}
+
 	if (!(res->flags & IORESOURCE_CACHEABLE))
 		return;