mb/google/zork: Fix duplicate i2c_tunnel uid

This conflicts with the MSTH i2c_tunnel.

BUG=b:175146875
BRANCH=zork
TEST=Boot trembyle and inspect ACPI tables.

Signed-off-by: Raul E Rangel <rrangel@chromium.org>
Change-Id: Iac04c7dc361d427f5ebb99644aa70bd0c7dbb918
Reviewed-on: https://review.coreboot.org/c/coreboot/+/49812
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
diff --git a/src/mainboard/google/zork/variants/baseboard/devicetree_trembyle.cb b/src/mainboard/google/zork/variants/baseboard/devicetree_trembyle.cb
index 4181b4a..40e2ed5 100644
--- a/src/mainboard/google/zork/variants/baseboard/devicetree_trembyle.cb
+++ b/src/mainboard/google/zork/variants/baseboard/devicetree_trembyle.cb
@@ -347,7 +347,7 @@
 			chip ec/google/chromeec
 				device pnp 0c09.0 on
 					chip ec/google/chromeec/i2c_tunnel
-						register "uid" = "1"
+						register "uid" = "0"
 						register "remote_bus" = "8"
 						device generic 0.0 on
 							chip drivers/i2c/generic