mb/google/nissa/var/meliks: Get wifi sar name

Add get_wifi_sar_cbfs_file_name() to return to wifi SAR file name.

BUG=b:404374545
TEST=FW_NAME=meliks emerge-nissa coreboot

Change-Id: I2d7a08059c0ed7588311a421faf59146ac43001d
Signed-off-by: Seunghwan Kim <sh_.kim@samsung.corp-partner.google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/87253
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Jayvik Desai <jayvik@google.com>
Reviewed-by: Kapil Porwal <kapilporwal@google.com>
Reviewed-by: Eric Lai <ericllai@google.com>

src/mainboard/google/brya/Kconfig

@@ -367,6 +367,7 @@ config BOARD_GOOGLE_MARASOV
 
 config BOARD_GOOGLE_MELIKS
 	select BOARD_GOOGLE_BASEBOARD_NISSA
+	select CHROMEOS_WIFI_SAR if CHROMEOS
 	select DRIVERS_I2C_DA7219
 	select DRIVERS_INTEL_MIPI_CAMERA
 	select ENFORCE_MEM_CHANNEL_DISABLE

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

@@ -6,3 +6,4 @@ romstage-y += memory.c
 ramstage-$(CONFIG_FW_CONFIG) += fw_config.c
 ramstage-y += gpio.c
 ramstage-y += ramstage.c
+ramstage-y += variant.c

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

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