mb/google/brya/var/taniks: Modify DPA value to 100 for taniks

In order to meet the OEM's acoustic specifications, the pre-wake
randomization time (DPA) is set to 100.

BUG=b:228410327
TEST=build FW and checked DPA value by fsp log.

Signed-off-by: Leo Chou <leo.chou@lcfc.corp-partner.google.com>
Change-Id: Idaf3f931a2c0f2373445948e5f53a82328ec7ba2
Reviewed-on: https://review.coreboot.org/c/coreboot/+/64372
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
diff --git a/src/mainboard/google/brya/variants/taniks/overridetree.cb b/src/mainboard/google/brya/variants/taniks/overridetree.cb
index 3877031..9ce7abb 100644
--- a/src/mainboard/google/brya/variants/taniks/overridetree.cb
+++ b/src/mainboard/google/brya/variants/taniks/overridetree.cb
@@ -42,6 +42,7 @@
 	register "slow_slew_rate[VR_DOMAIN_GT]" = "SLEW_FAST_8"
 	register "fast_pkg_c_ramp_disable[VR_DOMAIN_IA]" = "1"
 	register "fast_pkg_c_ramp_disable[VR_DOMAIN_GT]" = "1"
+	register "PreWake" = "100"
 	register "ext_fivr_settings" = "{
 		.configure_ext_fivr = 1,
 		.v1p05_enable_bitmap = FIVR_ENABLE_ALL_SX,