mb/google/nightfury: Update tdp_pl1_override value

Update tdp_pl1_override value to 15W for CML-U based nightfury platform.

BUG=None
BRANCH=firmware-hatch-12672.B
TEST=Built

Signed-off-by: Seunghwan Kim <sh_.kim@samsung.corp-partner.google.com>
Change-Id: Ib0155b961b9d304bed2e9456c4964ebd598af4dc
Reviewed-on: https://review.coreboot.org/c/coreboot/+/40323
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
diff --git a/src/mainboard/google/hatch/variants/nightfury/overridetree.cb b/src/mainboard/google/hatch/variants/nightfury/overridetree.cb
index a940f8b..4b985d9 100644
--- a/src/mainboard/google/hatch/variants/nightfury/overridetree.cb
+++ b/src/mainboard/google/hatch/variants/nightfury/overridetree.cb
@@ -1,5 +1,5 @@
 chip soc/intel/cannonlake
-	register "tdp_pl1_override" = "8"
+	register "tdp_pl1_override" = "15"
 	register "tdp_pl2_override" = "51"
 
 	register "SerialIoDevMode" = "{