Drop a bunch of useless header files, merge them into flash.h

Corresponding to flashrom svn r128 and coreboot v2 svn r2746.

Signed-off-by: Uwe Hermann <uwe@hermann-uwe.de>
Acked-by: Stefan Reinauer <stepan@coresystems.de>
diff --git a/layout.c b/layout.c
index 6dbbd9c..62715bd 100644
--- a/layout.c
+++ b/layout.c
@@ -2,9 +2,7 @@
 #include <stdlib.h>
 #include <string.h>
 #include <stdint.h>
-#include "layout.h"
-#include "lbtable.h"
-#include "debug.h"
+#include "flash.h"
 
 char *mainboard_vendor = NULL;
 char *mainboard_part = NULL;