Revert 5762. It silently broke a lot of boards because abuild was broken.

Signed-off-by: Myles Watson <mylesgw@gmail.com>
Acked-by: Myles Watson <mylesgw@gmail.com>


git-svn-id: svn://svn.coreboot.org/coreboot/trunk@5764 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1

src/include/pc80/mc146818rtc.h

@@ -81,6 +81,14 @@
 #define PC_CKS_RANGE_END	45
 #define PC_CKS_LOC		46
 
+/* coreboot cmos checksum is usually only built over bytes 49..125
+ * LB_CKS_RANGE_START, LB_CKS_RANGE_END and LB_CKS_LOC are defined
+ * in option_table.h
+ */
+#if CONFIG_HAVE_OPTION_TABLE
+#include <option_table.h>
+#endif
+
 #ifndef UTIL_BUILD_OPTION_TABLE
 #include <arch/io.h>
 static inline unsigned char cmos_read(unsigned char addr)