mb/system76: Remove PL4 values

System76 EC sets PL4 values through PECI based on AC state [1]. Remove
the static PL4 values from coreboot since they won't be used. This will
result in sysfs reporting the package default for PL4.

[1]: https://github.com/system76/ec/pull/353

Change-Id: If33eb38a20febaf8c71615f0d1a640d3991f42ff
Signed-off-by: Tim Crawford <tcrawford@system76.com>

src/mainboard/system76/adl/variants/darp8/overridetree.cb

@@ -1,10 +1,7 @@
 chip soc/intel/alderlake
-	# HACK: Limit PL4 to PL2 to prevent power-off when system is booted on
-	# battery power. This seems to only happen with the i7 units.
 	register "power_limits_config[ADL_P_282_482_28W_CORE]" = "{
 		.tdp_pl1_override = 20,
 		.tdp_pl2_override = 56,
-		.tdp_pl4 = 56, // FIXME: Set to 65
 	}"
 
 	# GPE configuration

src/mainboard/system76/adl/variants/galp6/overridetree.cb

@@ -2,7 +2,6 @@ chip soc/intel/alderlake
 	register "power_limits_config[ADL_P_282_482_28W_CORE]" = "{
 		.tdp_pl1_override = 28,
 		.tdp_pl2_override = 60,
-		.tdp_pl4 = 90,
 	}"
 
 	# GPE configuration

src/mainboard/system76/adl/variants/lemp11/overridetree.cb

@@ -2,7 +2,6 @@ chip soc/intel/alderlake
 	register "power_limits_config[ADL_P_142_242_282_15W_CORE]" = "{
 		.tdp_pl1_override = 15,
 		.tdp_pl2_override = 46,
-		.tdp_pl4 = 65,
 	}"
 
 	# GPE configuration

src/mainboard/system76/adl/variants/oryp10/overridetree.cb

@@ -1,10 +1,8 @@
 chip soc/intel/alderlake
-	# HACK: Limit PL4 to prevent power off on battery power.
 	register "power_limits_config[ADL_P_642_682_45W_CORE]" = "{
 		.tdp_pl1_override = 45,
 		.tdp_pl2_override = 115,
 		.tdp_psyspl2 = 135,
-		.tdp_pl4 = 72,
 	}"
 
 	# Thermal

src/mainboard/system76/adl/variants/oryp9/overridetree.cb

@@ -1,10 +1,8 @@
 chip soc/intel/alderlake
-	# HACK: Limit PL4 to prevent power off on battery power.
 	register "power_limits_config[ADL_P_642_682_45W_CORE]" = "{
 		.tdp_pl1_override = 45,
 		.tdp_pl2_override = 115,
 		.tdp_psyspl2 = 135,
-		.tdp_pl4 = 72,
 	}"
 
 	# Thermal

src/mainboard/system76/rpl/variants/galp7/overridetree.cb

@@ -2,7 +2,6 @@ chip soc/intel/alderlake
 	register "power_limits_config[RPL_P_682_642_482_45W_CORE]" = "{
 		.tdp_pl1_override = 45,
 		.tdp_pl2_override = 78,
-		.tdp_pl4 = 90,
 	}"
 
 	device domain 0 on

src/mainboard/system76/rpl/variants/lemp12/overridetree.cb

@@ -2,7 +2,6 @@ chip soc/intel/alderlake
 	register "power_limits_config[RPL_P_282_242_142_15W_CORE]" = "{
 		.tdp_pl1_override = 15,
 		.tdp_pl2_override = 46,
-		.tdp_pl4 = 65,
 	}"
 
 	device domain 0 on