mb/starlabs/starbook/adl: Disconnect the WLAN Sleep GPIO

The schematics show this pin isn't connected, so disconnect it.

Change-Id: Ib21048fa0972231410b7e8f7829a9eeac1d065c7
Signed-off-by: Sean Rhodes <sean@starlabs.systems>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/86286
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Matt DeVillier <matt.devillier@gmail.com>

src/mainboard/starlabs/starbook/variants/adl/gpio.c

@@ -37,7 +37,7 @@ const struct pad_config gpio_table[] = {
 	/* GPD8:	Suspend Clock					*/
 	PAD_CFG_NF(GPD8, NONE, DEEP, NF1),
 	/* GPD9:	Wireless LAN Sleep				*/
-	PAD_CFG_NF(GPD9, NONE, DEEP, NF1),
+	PAD_NC(GPD9, NONE),
 	/* GPD10:	Sleep S5					*/
 	PAD_NC(GPD10, NONE),
 	/* GPD11:	LAN PHY Enable					*/