mb/google/brya/var/bujia: Add Wifi SAR for bujia

Add wifi sar for bujia.

BUG=b:345364452
BRANCH=firmware-brya-14505.B
TEST=emerge-brask coreboot-private-files-baseboard-brya coreboot
chromeos-bootimage

Change-Id: I5a67f3723a9dc33793a5cd95f9a3a2596c3c1fc6
Signed-off-by: Shon Wang <shon.wang@quanta.corp-partner.google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/84501
Reviewed-by: Jayvik Desai <jayvik@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Eric Lai <ericllai@google.com>
Reviewed-by: Derek Huang <derekhuang@google.com>

src/mainboard/google/brya/Kconfig

@@ -187,6 +187,7 @@ config BOARD_GOOGLE_BRYA0
 
 config BOARD_GOOGLE_BUJIA
 	select BOARD_GOOGLE_BASEBOARD_BRASK
+	select CHROMEOS_WIFI_SAR if CHROMEOS
 	select INTEL_GMA_HAVE_VBT
 	select SOC_INTEL_RAPTORLAKE
 

src/mainboard/google/brya/variants/bujia/Makefile.mk

@@ -5,3 +5,4 @@ romstage-y += gpio.c
 
 ramstage-y += gpio.c
 ramstage-y += ramstage.c
+ramstage-y += variant.c

src/mainboard/google/brya/variants/bujia/variant.c

@@ -0,0 +1,8 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+
+#include <sar.h>
+
+const char *get_wifi_sar_cbfs_filename(void)
+{
+	return "wifi_sar_0.hex";
+}