mb/google/nissa/var/xivu: Update DPTF parameters

Follow thermal table from thermal team.

1. Modify TS1 passive policy to 68.

BUG=b:249446156
TEST=emerge-nissa coreboot chromeos-bootimage

Signed-off-by: Ian Feng <ian_feng@compal.corp-partner.google.com>
Change-Id: I8539a29cab4863034a2b64d38aef4b772473246d
Reviewed-on: https://review.coreboot.org/c/coreboot/+/69960
Reviewed-by: Kangheui Won <khwon@chromium.org>
Reviewed-by: Dtrain Hsu <dtrain_hsu@compal.corp-partner.google.com>
Reviewed-by: Sumeet R Pawnikar <sumeet.r.pawnikar@intel.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
diff --git a/src/mainboard/google/brya/variants/xivu/overridetree.cb b/src/mainboard/google/brya/variants/xivu/overridetree.cb
index 0c8ed39..ac23c68 100644
--- a/src/mainboard/google/brya/variants/xivu/overridetree.cb
+++ b/src/mainboard/google/brya/variants/xivu/overridetree.cb
@@ -107,7 +107,7 @@
 				register "policies.passive" = "{
 					[0] = DPTF_PASSIVE(CPU,         CPU,           90, 5000),
 					[1] = DPTF_PASSIVE(CPU,         TEMP_SENSOR_0, 77, 5000),
-					[2] = DPTF_PASSIVE(CPU,         TEMP_SENSOR_1, 60, 5000),
+					[2] = DPTF_PASSIVE(CPU,         TEMP_SENSOR_1, 68, 5000),
 					[3] = DPTF_PASSIVE(CHARGER,     TEMP_SENSOR_2, 78, 5000),
 				}"