mb/intel/{adlrvp,sm}: Remove unused header `helpers.h`

This patch removes unused header inclusion as <commonlib/helpers.h>
from several mainboard gpio definition files.

Change-Id: I36758089a4981bba916f4d9cf485f64fca2f81ae
Signed-off-by: subratabanik <subratabanik@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/60305
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-by: EricR Lai <ericr_lai@compal.corp-partner.google.com>
Reviewed-by:  Felix Singer <felixsinger@posteo.net>

src/mainboard/intel/adlrvp/early_gpio.c

@@ -2,7 +2,6 @@
 
 #include <baseboard/gpio.h>
 #include <baseboard/variants.h>
-#include <commonlib/helpers.h>
 #include <soc/gpio.h>
 
 /* Early pad configuration in bootblock */

src/mainboard/intel/adlrvp/early_gpio_m.c

@@ -2,7 +2,6 @@
 
 #include <baseboard/gpio.h>
 #include <baseboard/variants.h>
-#include <commonlib/helpers.h>
 #include <soc/gpio.h>
 
 /* Early pad configuration in bootblock */

src/mainboard/intel/adlrvp/gpio_m.c

@@ -2,7 +2,6 @@
 
 #include <baseboard/gpio.h>
 #include <baseboard/variants.h>
-#include <commonlib/helpers.h>
 
 /* Pad configuration in ramstage */
 static const struct pad_config gpio_table[] = {

src/mainboard/intel/shadowmountain/variants/baseboard/early_gpio.c

@@ -2,7 +2,6 @@
 
 #include <baseboard/gpio.h>
 #include <baseboard/variants.h>
-#include <commonlib/helpers.h>
 
 /* Early pad configuration in bootblock */
 static const struct pad_config early_gpio_table[] = {