mb/amd/padmelon: Drop SCI configuration for GPIO_137

GPIO_137 does not have any gevent associated with it. This change
drops the configuration of GPIO_137 as SCI for padmelon.

Change-Id: I0579d05bda4523bbb5e3441d2a3b6e2b33b05cfc
Signed-off-by: Furquan Shaikh <furquan@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/42873
Reviewed-by: Raul Rangel <rrangel@chromium.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

src/mainboard/amd/padmelon/gpio.c

@@ -26,7 +26,6 @@ static const struct soc_amd_gpio gpio_set_stage_ram[] = {
 	/* DEVSLP1 */
 	PAD_NF(GPIO_70, DEVSLP1, PULL_UP),
 	/* WLAND */
-	PAD_SCI(GPIO_137, PULL_UP, LEVEL_LOW),
 	PAD_WAKE(GPIO_137, PULL_UP, LEVEL_LOW, S3),
 #else
 	/* PCIE_WAKE */