mb/google/volteer: Fix wrong Type-C port for retimer

This change fixes wrong type-C port number for voxel. Voxel
uses tcss_usb3_port1 not tcss_usb3_port3.

BUG=b:231344977
BRANCH=volteer
TEST=Check the transactions are happening on correct port. Also checked
retimer firmware update on both the ports.

Signed-off-by: Derek Huang <derek.huang@intel.corp-partner.google.com>
Change-Id: Iba7b3b15296bed99d3626a6d53dfd59e8d20fe5f
Reviewed-on: https://review.coreboot.org/c/coreboot/+/64022
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Reviewed-by: Derek Huang <derekhuang@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
diff --git a/src/mainboard/google/volteer/variants/voxel/overridetree.cb b/src/mainboard/google/volteer/variants/voxel/overridetree.cb
index 4bca103..a2bb85d 100644
--- a/src/mainboard/google/volteer/variants/voxel/overridetree.cb
+++ b/src/mainboard/google/volteer/variants/voxel/overridetree.cb
@@ -83,7 +83,7 @@
 			chip drivers/intel/usb4/retimer
 				register "dfp[0].power_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_HIGH(GPP_H10)"
 				register "dfp[1].power_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_HIGH(GPP_H10)"
-				use tcss_usb3_port3 as dfp[0].typec_port
+				use tcss_usb3_port1 as dfp[0].typec_port
 				use tcss_usb3_port2 as dfp[1].typec_port
 				device generic 0 on end
 			end