zork/var/ezkinil: Fix Touchscreen doesn't work on v3.6x rework board

The gpio90 EN_PWR_TOUCHSCREEN had been set to PAD_GPO(GPIO_90, LOW), but
addtional PAD_NC(GPIO_90) cause enable fail. remove it for issue fixed.

BRANCH=zork
BUG=b:168580357
TEST=Check Touchscreen function work

Signed-off-by: Lucas Chen <lucas.chen@quanta.corp-partner.google.com>
Change-Id: Id94dd63ba51759cebaf17779a5e659dbe0f1807f
Reviewed-on: https://review.coreboot.org/c/coreboot/+/45415
Reviewed-by: Martin Roth <martinroth@google.com>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

src/mainboard/google/zork/variants/ezkinil/gpio.c

@@ -68,8 +68,6 @@ static const struct soc_amd_gpio ezkinil_bid3_gpio_set_stage_ram[] = {
 	PAD_NC(GPIO_69),
 	/* EN_DEV_BEEP_L */
 	PAD_GPO(GPIO_89, HIGH),
-	/* TP */
-	PAD_NC(GPIO_90),
 	/* USI_RESET */
 	PAD_GPO(GPIO_140, HIGH),
 };