tree: Include missing headers for function prototypes

These files all contain functions whose prototypes are in header files,
so make sure those header files are included.

Change-Id: I0189a1550bf90d4a0b87dcef9f8a8449590cc9d7
Signed-off-by: Jacob Garber <jgarber1@ualberta.ca>
Reviewed-on: https://review.coreboot.org/c/flashrom/+/33668
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Nico Huber <nico.h@gmx.de>

edi.c

@@ -16,6 +16,7 @@
 
 #include <string.h>
 #include "flash.h"
+#include "chipdrivers.h"
 #include "ene.h"
 #include "edi.h"