Add more infrastructure for flashrom ICH9 support

Corresponding to flashrom svn r234 and coreboot v2 svn r3314.

Signed-off-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net>
Acked-by: Stefan Reinauer <stepan@coresystems.de>
diff --git a/flash.h b/flash.h
index 37d7dc0..4f73e0d 100644
--- a/flash.h
+++ b/flash.h
@@ -336,6 +336,8 @@
 /* chipset_enable.c */
 int chipset_flash_enable(void);
 void print_supported_chipsets(void);
+extern int ich9_detected;
+extern void *ich_spibar;
 
 /* Physical memory mapping device */
 #if defined (__sun) && (defined(__i386) || defined(__amd64))