Allow PowerStats HAL to read display state

Bug: 163420392
Test: lshal debug android.hardware.power.stats@1.0::IPowerStats/default
Merged-In: Ifb273beef21db015e155983c9174bf0599356c8e
Change-Id: Ifb273beef21db015e155983c9174bf0599356c8e
diff --git a/vendor/google/hal_power_stats_default.te b/vendor/google/hal_power_stats_default.te
index b5cc289..059b6d0 100644
--- a/vendor/google/hal_power_stats_default.te
+++ b/vendor/google/hal_power_stats_default.te
@@ -3,6 +3,7 @@
 r_dir_file(hal_power_stats_default, sysfs_iio_devices) # Needed to traverse odpm files
 r_dir_file(hal_power_stats_default, sysfs_power_stats) # Needed to traverse platform low power stats
 r_dir_file(hal_power_stats_default, sysfs_msm_subsys) # Needed to traverse subsystem low power stats
+r_dir_file(hal_power_stats_default, sysfs_leds) # Needed to track display stats
 
 # The following folders are incidentally accessed by hal_power_stats_default and are not needed.
 dontaudit hal_power_stats_default sysfs_power_stats_ignore:dir r_dir_perms;