mb/google/brya/var/osiris: Update power limit values for RPL CPU

Update power limit values based on the suggestion of the thermal
team for RPL CPU.

The PL1 value (28W) suggested by the thermal team which is different from the reference document 686872 (PL1=15W).

BUG=b:310834985
TEST=built and booted into OS.

Change-Id: Ia2540ecd1fc453701b9160c97d82ba50b88ee848
Signed-off-by: David Wu <david_wu@quanta.corp-partner.google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/79059
Reviewed-by: Nick Vaccaro <nvaccaro@google.com>
Reviewed-by: Eric Lai <ericllai@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

src/mainboard/google/brya/variants/osiris/overridetree.cb

@@ -63,6 +63,12 @@ chip soc/intel/alderlake
 		},
 	}"
 
+	register "power_limits_config[RPL_P_282_242_142_15W_CORE]" = "{
+		.tdp_pl1_override = 28,
+		.tdp_pl2_override = 55,
+		.tdp_pl4 = 114,
+	}"
+
 	device domain 0 on
 		device ref igpu on
 			chip drivers/gfx/generic