Add general programmer sanity checks

And remove the completely unused vendor field.

Corresponding to flashrom svn r1630.

Signed-off-by: Stefan Tauner <stefan.tauner@alumni.tuwien.ac.at>
Acked-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net>
diff --git a/programmer.h b/programmer.h
index dedec67..1510e2f 100644
--- a/programmer.h
+++ b/programmer.h
@@ -91,13 +91,11 @@
 };
 
 struct programmer_entry {
-	const char *vendor;
 	const char *name;
 
 	int (*init) (void);
 
-	void *(*map_flash_region) (const char *descr, unsigned long phys_addr,
-				   size_t len);
+	void *(*map_flash_region) (const char *descr, unsigned long phys_addr, size_t len);
 	void (*unmap_flash_region) (void *virt_addr, size_t len);
 
 	void (*delay) (int usecs);