mb/google/rex/var/karis: Add SOC_TCHSCR_INT settings to gpio table

Karis use I2C touchscreen only, add SOC_TCHSCR_INT(GPP_C07) to ramstage
gpio table.

BUG=b:294155897
TEST=emerge-rex coreboot

Change-Id: Ie715cfbe1984dbe38cd933312304b42ce9088806
Signed-off-by: Tyler Wang <tyler.wang@quanta.corp-partner.google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/77397
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Eric Lai <eric_lai@quanta.corp-partner.google.com>
Reviewed-by: Subrata Banik <subratabanik@google.com>
Reviewed-by: Kapil Porwal <kapilporwal@google.com>
diff --git a/src/mainboard/google/rex/variants/karis/gpio.c b/src/mainboard/google/rex/variants/karis/gpio.c
index f45fca5..0ff8d01 100644
--- a/src/mainboard/google/rex/variants/karis/gpio.c
+++ b/src/mainboard/google/rex/variants/karis/gpio.c
@@ -109,6 +109,8 @@
 	PAD_CFG_GPO(GPP_C05, 1, PLTRST),
 	/* GPP_C06 : [] ==> SOC_TCHSCR_RPT_EN */
 	PAD_CFG_GPO(GPP_C06, 0, DEEP),
+	/* GPP_C07 : [] ==> SOC_TCHSCR_INT */
+	PAD_CFG_GPI_APIC(GPP_C07, NONE, PLTRST, LEVEL, NONE),
 	/* GPP_C08 : [] ==> SOCHOT_ODL */
 	PAD_CFG_NF(GPP_C08, NONE, DEEP, NF2),
 	/* GPP_C09 : net NC is not present in the given design */