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

Add wifi sar for gladios.

BUG=b:260950906
BRANCH=firmware-brya-14505.B
TEST=emerge-brask coreboot-private-files-baseboard-brya coreboot
chromeos-bootimage

Change-Id: I4cd015f17c4ddd28414f51a873ae4afc37863708
Signed-off-by: Robert Chen <robert.chen@quanta.corp-partner.google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/70605
Reviewed-by: Kevin Chiu <kevin.chiu.17802@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

src/mainboard/google/brya/Kconfig.name

@@ -300,6 +300,7 @@ config BOARD_GOOGLE_ZYDRON
 config BOARD_GOOGLE_GLADIOS
 	bool "->  Gladios"
 	select BOARD_GOOGLE_BASEBOARD_BRASK
+	select CHROMEOS_WIFI_SAR if CHROMEOS
 	select SOC_INTEL_RAPTORLAKE
 	select DRIVERS_GENESYSLOGIC_GL9763E
 	select DRIVERS_GENESYSLOGIC_GL9750

src/mainboard/google/brya/variants/gladios/Makefile.inc

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

src/mainboard/google/brya/variants/gladios/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";
+}