mb/starlabs/starbook/adl: Disable the Clock Request 4 GPIO

The CPU port is not used so disable it.

Change-Id: Ia150f99c4679323f08e44b0885af04113dfabd87
Signed-off-by: Sean Rhodes <sean@starlabs.systems>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/81397
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Martin L Roth <gaumless@gmail.com>

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

@@ -374,7 +374,7 @@ const struct pad_config gpio_table[] = {
 	/* H18:		CPI C10 Gate					*/
 	PAD_CFG_NF(GPP_H18, NONE, DEEP, NF1),
 	/* H19:		Clock Request 4		CPU M.2 SSD		*/
-	PAD_CFG_NF(GPP_H19, NONE, DEEP, NF1),
+	PAD_NC(GPP_H19, NONE),
 	/* H20:		Not Connected					*/
 	PAD_NC(GPP_H20, NONE),
 	/* H21:		Not Connected					*/