hwaccess.c: move function declarations from programmer.h to hwaccess.h

Move declarations for functions implemented in hwaccess.c from
programmer.h to hwaccess.h.

Change-Id: I075fd86211c766ae3d5f29c76adbd7c5b9bdbd80
Signed-off-by: Thomas Heijligen <thomas.heijligen@secunet.com>
Original-Reviewed-on: https://review.coreboot.org/c/flashrom/+/58865
Original-Reviewed-by: Nico Huber <nico.h@gmx.de>
Original-Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/flashrom-stable/+/71436
Reviewed-by: Nico Huber <nico.h@gmx.de>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
diff --git a/ich_descriptors.c b/ich_descriptors.c
index 1e975fa..63d4580 100644
--- a/ich_descriptors.c
+++ b/ich_descriptors.c
@@ -16,6 +16,7 @@
  */
 
 #include "ich_descriptors.h"
+#include "hwaccess.h"
 
 #ifdef ICH_DESCRIPTORS_FROM_DUMP_ONLY
 #include <stdio.h>