mb/google/volteer/variants/drobit: Add Charger Performance Control table TCHG for DPTF setting.

Add Charger Performance Control table TCHG for DPTF setting.

BUG=b:194256990
BRANCH=firmware-volteer-13672.B
TEST=build test firmware and verified by thermal team.

Change-Id: I9dba3f0e75d07d8ee9656bd1ee8d6de2d3b8c152
Signed-off-by: Wayne3 Wang <Wayne3_Wang@pegatron.corp-partner.google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/56500
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Ariel Chang <ariel_chang@pegatron.corp-partner.google.com>
Reviewed-by: Paul F Yang <paul.f.yang@intel.com>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Reviewed-by: Wayne3 Wang <wayne3_wang@pegatron.corp-partner.google.com>
diff --git a/src/mainboard/google/volteer/variants/drobit/overridetree.cb b/src/mainboard/google/volteer/variants/drobit/overridetree.cb
index 8ae198c..d779a3c 100644
--- a/src/mainboard/google/volteer/variants/drobit/overridetree.cb
+++ b/src/mainboard/google/volteer/variants/drobit/overridetree.cb
@@ -102,6 +102,14 @@
 				register "options.fan.fine_grained_control" = "1"
 				register "options.fan.step_size" = "2"
 
+				## Charger Performance Control (Control, mA)
+				register "controls.charger_perf" = "{
+					[0] = {  32, 2048 },
+					[1] = {  29, 1856 },
+					[2] = {  26, 1664 },
+					[3] = {  23, 1472 }
+				}"
+
 				device generic 0 on end
 			end
 		end # DPTF