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

Add WIFI SAR table for intel WIFI SAR table

BUG=b:434861866
TEST=Build and flash to DUT, check that SAR table is loaded by cbmem -c | grep SAR

Change-Id: Idf48254ec43535ff51859ecbec3ea75b7c35e70c
Signed-off-by: Eren Peng <peng.eren@inventec.corp-partner.google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/88702
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Eric Lai <ericllai@google.com>
Reviewed-by: Kapil Porwal <kapilporwal@google.com>

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

@@ -4,5 +4,6 @@ bootblock-y += gpio.c
 romstage-y += gpio.c
 romstage-y += memory.c
 ramstage-y += gpio.c
+ramstage-y += variant.c
 ramstage-$(CONFIG_SOC_INTEL_COMMON_BLOCK_HDA_VERB) += hda_verb.c
 ramstage-$(CONFIG_FW_CONFIG) += fw_config.c

src/mainboard/google/brya/variants/kaladin/overridetree.cb

@@ -11,6 +11,10 @@ fw_config
 		option TOUCH_ELAN_TOP   0
 		option TOUCH_ELAN_DBTS  1
 	end
+	field WIFI_SAR 13 15
+		option WIFI_SAR_ID_0 0
+		option WIFI_SAR_ID_1 1
+	end
 	field STORAGE 30 31
 		option STORAGE_EMMC		0
 		option STORAGE_NVME		1

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

@@ -0,0 +1,9 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+
+#include <fw_config.h>
+#include <sar.h>
+
+const char *get_wifi_sar_cbfs_filename(void)
+{
+	return get_wifi_sar_fw_config_filename(FW_CONFIG_FIELD(WIFI_SAR));
+}