mb/*/bootblock.c: Fix set but unused variable over inb loop

Change-Id: Iba80c4a5960c6fb59f542b33e8e769576ccfed59
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/63060
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-by: Patrick Rudolph <siro@das-labor.org>

src/mainboard/amd/olivehill/bootblock.c

@@ -7,12 +7,11 @@
 void bootblock_mainboard_early_init(void)
 {
 	int i;
-	u32 val;
 
 	/* Disable PCI-PCI bridge and release GPIO32/33 for other uses. */
 	pm_write8(0xea, 0x1);
 
 	/* On Larne, after LpcClkDrvSth is set, it needs some time to be stable, because of the buffer ICS551M */
 	for (i = 0; i < 200000; i++)
-		val = inb(0xcd6);
+		inb(0xcd6);
 }

src/mainboard/asus/am1i-a/bootblock.c

@@ -103,7 +103,7 @@ static void ite_gpio_conf(pnp_devfn_t dev)
 
 void bootblock_mainboard_early_init(void)
 {
-	u32 val, i;
+	u32 i;
 
 	/* Disable PCI-PCI bridge and release GPIO32/33 for other uses. */
 	pm_write8(0xea, 0x1);
@@ -128,5 +128,5 @@ void bootblock_mainboard_early_init(void)
 	* because of the buffer ICS551M
 	*/
 	for (i = 0; i < 200000; i++)
-		val = inb(0xcd6);
+		inb(0xcd6);
 }