mb/google/nissa/var/uldren: Modify GPIOs for non-touchscreen

Set GPP_C6(TCHSCR_REPORT_EN) and GPP_C7(TCHSCR_INT_ODL) to NC for
non-touchscreen sku.

BUG=b:283199751
BRANCH=firmware-nissa-15217.B
TEST=build and boot to ChromeOS

Change-Id: Ie062eef24f640c3d6c4a0b4c77792e57ac3a722c
Signed-off-by: Dtrain Hsu <dtrain_hsu@compal.corp-partner.google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/76749
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Eric Lai <eric_lai@quanta.corp-partner.google.com>
diff --git a/src/mainboard/google/brya/variants/uldren/variant.c b/src/mainboard/google/brya/variants/uldren/variant.c
index ef6998f..aca2561 100644
--- a/src/mainboard/google/brya/variants/uldren/variant.c
+++ b/src/mainboard/google/brya/variants/uldren/variant.c
@@ -10,6 +10,10 @@
 	PAD_NC(GPP_C0, NONE),
 	/* C1  : SMBDATA ==> TCHSCR_RST_L */
 	PAD_NC(GPP_C1, NONE),
+	/* C6  : SML1CLK ==> TCHSCR_REPORT_EN */
+	PAD_NC(GPP_C6, NONE),
+	/* C7  : SML1DATA ==> TCHSCR_INT_ODL */
+	PAD_NC(GPP_C7, NONE),
 	/* H6  : I2C1_SDA ==> SOC_I2C_TCHSCR_SDA */
 	PAD_NC(GPP_H6, NONE),
 	/* H7  : I2C1_SCL ==> SOC_I2C_TCHSCR_SCL */