Use helper functions chip_{read,write}[bwl] to access flash chips

The semantic patch I used in r418 to make the original conversion to
accessor functions was missing one isomorphism:
a[b] <=> *(a+b)

The semantic patcher Coccinelle was used to create this patch. Semantic
patch follows:
@@
typedef uint8_t;
expression a;
volatile uint8_t *b;
@@
- b[a]
+ *(b + a)
@@
expression a;
volatile uint8_t *b;
@@
- *(b) = (a);
+ chip_writeb(a, b);
@@
volatile uint8_t *b;
@@
- *(b)
+ chip_readb(b)
@@
type T;
T b;
@@
(
 chip_readb
|
 chip_writeb
)
 (...,
- (T)
- (b)
+ b
 )

Corresponding to flashrom svn r498.

Signed-off-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net>
Acked-by: Uwe Hermann <uwe@hermann-uwe.de>

jedec.c

@@ -331,8 +331,8 @@ int write_jedec(struct flashchip *flash, uint8_t *buf)
 	erase_chip_jedec(flash);
 	// dumb check if erase was successful.
 	for (i = 0; i < total_size; i++) {
-		if (bios[i] != (uint8_t) 0xff) {
-			printf("ERASE FAILED @%d, val %02x!\n", i, bios[i]);
+		if (chip_readb(bios + i) != (uint8_t) 0xff) {
+			printf("ERASE FAILED @%d, val %02x!\n", i, chip_readb(bios + i));
 			return -1;
 		}
 	}