Adept layout handling to new programmer infrastructure and fix off-by-one error

Flashrom has the ability to use layout files with romentries, but
this feature was not adapted to the programmer infrastructure and had
undefined behaviour for flasher!=internal. The romentry handling had an
off-by-one error which caused all copies to end up one byte short. Fix
these issues.

Corresponding to flashrom svn r694.

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 c5234dc..d3e2e30 100644
--- a/flash.h
+++ b/flash.h
@@ -422,7 +422,7 @@
 int show_id(uint8_t *bios, int size, int force);
 int read_romlayout(char *name);
 int find_romentry(char *name);
-int handle_romentries(uint8_t *buffer, uint8_t *content);
+int handle_romentries(uint8_t *buffer, struct flashchip *flash);
 
 /* cbtable.c */
 int coreboot_init(void);