Move brownout_detection definition to system_ext

Because brownout detection app is installed to system_ext.

Bug: 296512192
Test: build panther and boot
Test: Automatically filed b/300277478
(cherry picked from https://googleplex-android-review.googlesource.com/q/commit:155ec7653f2aaf01ca0495c2fcd51ea5728bbb04)
Merged-In: Ia381f01bbfeb8576a4f9b58ca24aeeeb436060b7
Change-Id: Ia381f01bbfeb8576a4f9b58ca24aeeeb436060b7

battery_mitigation/bcl.mk

@@ -3,5 +3,7 @@ ifneq (,$(filter userdebug eng, $(TARGET_BUILD_VARIANT)))
 PRODUCT_PACKAGES += BrownoutDetection
 endif
 
-BOARD_VENDOR_SEPOLICY_DIRS += device/google/gs-common/battery_mitigation/sepolicy
+BOARD_VENDOR_SEPOLICY_DIRS += device/google/gs-common/battery_mitigation/sepolicy/vendor
+SYSTEM_EXT_PRIVATE_SEPOLICY_DIRS += device/google/gs-common/battery_mitigation/sepolicy/system_ext/private
+SYSTEM_EXT_PUBLIC_SEPOLICY_DIRS += device/google/gs-common/battery_mitigation/sepolicy/system_ext/public
 PRODUCT_SOONG_NAMESPACES += device/google/gs-common/battery_mitigation

battery_mitigation/sepolicy/brownout_detection_app.te

@@ -1,12 +0,0 @@
-type brownout_detection_app, domain, coredomain;
-
-# TODO(b/296512192): move brownout_detection_app out of vendor sepolicy
-typeattribute brownout_detection_app vendor_seapp_assigns_coredomain_violators;
-
-userdebug_or_eng(`
-  app_domain(brownout_detection_app)
-  net_domain(brownout_detection_app)
-  allow brownout_detection_app app_api_service:service_manager find;
-  allow brownout_detection_app system_api_service:service_manager find;
-  get_prop(brownout_detection_app, vendor_brownout_reason_prop)
-')

battery_mitigation/sepolicy/system_ext/private/brownout_detection_app.te

@@ -0,0 +1,8 @@
+typeattribute brownout_detection_app coredomain;
+
+userdebug_or_eng(`
+  app_domain(brownout_detection_app)
+  net_domain(brownout_detection_app)
+  allow brownout_detection_app app_api_service:service_manager find;
+  allow brownout_detection_app system_api_service:service_manager find;
+')

battery_mitigation/sepolicy/system_ext/public/brownout_detection_app.te

@@ -0,0 +1 @@
+type brownout_detection_app, domain;

battery_mitigation/sepolicy/vendor/brownout_detection_app.te

@@ -0,0 +1,3 @@
+userdebug_or_eng(`
+  get_prop(brownout_detection_app, vendor_brownout_reason_prop)
+')