mb/google/guybrush/var/nipperkin: update telemetry settings

Update the two load line slope settings for the SVID3 telemetry.
AGESA sends these values to the SMU, which accepts them as units
of current.  Proper calibration is determined by the AMD SDLE tool
and the Stardust test.

vdd scale:  73457 -> 73331
vdd offset: 291 -> 1893
soc scale:  30761 -> 31955
soc offset: 834 -> 852

BUG=b:207299255
BRANCH=guybrush
TEST=1. emerge-guybrush coreboot
     2. pass AMD SDLE/Stardust test

Change-Id: I9c9dd4883fd21a70a1e7a50f25a4f76df1e56bc6
Signed-off-by: Kevin Chiu <kevin.chiu.17802@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/60243
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Paul Menzel <paulepanter@mailbox.org>
Reviewed-by: Rob Barnes <robbarnes@google.com>
diff --git a/src/mainboard/google/guybrush/variants/nipperkin/overridetree.cb b/src/mainboard/google/guybrush/variants/nipperkin/overridetree.cb
index 19c6fe1..c7917ae 100644
--- a/src/mainboard/google/guybrush/variants/nipperkin/overridetree.cb
+++ b/src/mainboard/google/guybrush/variants/nipperkin/overridetree.cb
@@ -61,10 +61,10 @@
 	register "sustained_power_limit_mW"  = "15000"
 	register "thermctl_limit_degreeC"    = "100"
 
-	register "telemetry_vddcrvddfull_scale_current_mA" = "73457" #mA
-	register "telemetry_vddcrvddoffset" =  "291"
-	register "telemetry_vddcrsocfull_scale_current_mA" = "30761" #mA
-	register "telemetry_vddcrsocoffset" =  "834"
+	register "telemetry_vddcrvddfull_scale_current_mA" = "73331" #mA
+	register "telemetry_vddcrvddoffset" =  "1893"
+	register "telemetry_vddcrsocfull_scale_current_mA" = "31955" #mA
+	register "telemetry_vddcrsocoffset" =  "852"
 
 	# I2C Config
 	#+-------------------+---------------------------+