mb/google/trulo/var/uldrenite: Add WIFI SAR table

Add WIFI SAR table for uldrenite.

BUG=b:384453900
BRANCH=firmware-trulo-15217.771.B
TEST=emerge-nissa coreboot chromeos-bootimage

Change-Id: Ieb7f7ba54aaa6bdf1a19e59e57eb46cfafd655fe
Signed-off-by: jamie_chen <jamie_chen@compal.corp-partner.google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/86291
Reviewed-by: Jayvik Desai <jayvik@google.com>
Reviewed-by: Dtrain Hsu <dtrain_hsu@compal.corp-partner.google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Subrata Banik <subratabanik@google.com>

src/mainboard/google/brya/Kconfig

@@ -638,6 +638,7 @@ config BOARD_GOOGLE_ULDREN
 config BOARD_GOOGLE_ULDRENITE
 	select BOARD_GOOGLE_BASEBOARD_TRULO
 	select BOARD_ROMSIZE_KB_32768
+	select CHROMEOS_WIFI_SAR if CHROMEOS
 	select SOC_INTEL_TCSS_USE_PDC_PMC_USBC_MUX_CONFIGURATION
 	select HAVE_PCIE_WWAN
 	select HAVE_WWAN_POWER_SEQUENCE

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

@@ -5,10 +5,16 @@
 #include <console/console.h>
 #include <delay.h>
 #include <fw_config.h>
+#include <sar.h>
 
 #define RW350R_RST_DELAY_MS 20
 #define RW350R_PERST_DELAY_MS 30
 
+const char *get_wifi_sar_cbfs_filename(void)
+{
+	return "wifi_sar_0.hex";
+}
+
 static const struct pad_config rw350r_en_pad[] = {
 	/* H23 : LTE_PWR_OFF_EN */
 	PAD_CFG_GPO(GPP_H23, 1, DEEP),