Add wireless/device/mitigate_threshold to control Dream Defend from GoogleBattery am: df5f6ee522 am: 833a62da50 am: 7bf38352c7

Original change: https://android-review.googlesource.com/c/platform/hardware/google/pixel-sepolicy/+/1674303

Change-Id: If8371c062236c39ac954e0ff011fdf279f7f3361
diff --git a/googlebattery/hal_googlebattery.te b/googlebattery/hal_googlebattery.te
index fc08b28..cd1253b 100644
--- a/googlebattery/hal_googlebattery.te
+++ b/googlebattery/hal_googlebattery.te
@@ -4,10 +4,12 @@
 init_daemon_domain(hal_googlebattery)
 
 r_dir_file(hal_googlebattery, sysfs_batteryinfo)
+r_dir_file(hal_googlebattery, sysfs_wlc)
 
 allow hal_googlebattery sysfs_batteryinfo:file rw_file_perms;
 allow hal_googlebattery self:netlink_kobject_uevent_socket create_socket_perms_no_ioctl;
 allow hal_googlebattery sysfs_chargelevel:file rw_file_perms;
+allow hal_googlebattery sysfs_wlc:file rw_file_perms;
 
 set_prop(hal_googlebattery, vendor_battery_defender_prop)