mb/google/glados: Fix WiFi SAR options

SAR-related Kconfigs are only used by ChromeOS, and should be guarded
properly as such (as most other boards do).

TEST=build glados w/o CONFIG_CHROMEOS, verify SAR-related Kconfigs not
selected.

Change-Id: Id8abf68ed2e9720b5580f7965208dbe36460af07
Signed-off-by: Matt DeVillier <matt.devillier@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/68458
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
diff --git a/src/mainboard/google/glados/Kconfig b/src/mainboard/google/glados/Kconfig
index ff6b1ea..631d90d 100644
--- a/src/mainboard/google/glados/Kconfig
+++ b/src/mainboard/google/glados/Kconfig
@@ -31,12 +31,10 @@
 
 config BOARD_GOOGLE_CAROLINE
 	select BOARD_GOOGLE_BASEBOARD_GLADOS
-	select DSAR_ENABLE
+	select CHROMEOS_WIFI_SAR if CHROMEOS
 	select INTEL_GMA_HAVE_VBT
 	select MAINBOARD_NO_FSP_GOP
 	select NHLT_SSM4567 if INCLUDE_NHLT_BLOBS
-	select SAR_ENABLE
-	select USE_SAR
 
 config BOARD_GOOGLE_CAVE
 	select BOARD_GOOGLE_BASEBOARD_GLADOS
@@ -75,6 +73,13 @@
 
 if BOARD_GOOGLE_BASEBOARD_GLADOS
 
+config CHROMEOS_WIFI_SAR
+	bool "Enable SAR options for ChromeOS build"
+	depends on CHROMEOS
+	select DSAR_ENABLE
+	select SAR_ENABLE
+	select USE_SAR
+
 config DISABLE_HECI1_AT_PRE_BOOT
 	default y