sepolicy: Allow ServiceMenu to test LEDs

Issue: FP3-A11#444
Issue: FP3-A13#45
Change-Id: I1bf224c416d60789e1737583ffa2c42b8fc9a811
diff --git a/sepolicy/vendor/system_app.te b/sepolicy/vendor/system_app.te
index 5408b7d..65e81b9 100644
--- a/sepolicy/vendor/system_app.te
+++ b/sepolicy/vendor/system_app.te
@@ -13,3 +13,8 @@
 # Allow to read battery details
 allow system_app sysfs_battery_supply:dir r_dir_perms;
 allow system_app sysfs_battery_supply:file r_file_perms;
+
+# Allow ServiceMenu to toggle notification LED
+allow system_app sysfs_graphics:dir search;
+allow system_app sysfs_graphics:file { open write };
+allow system_app sysfs_leds:dir search;