Sepolicy: Give asan_extract access to powerctl

rc-style powerctl has beem removed. Accordingly, asan_extract now
needs access to sys.powerctl directly.

Bug: 36458146
Test: m && m SANITIZE_TARGET=address SANITIZE_TARGET_SYSTEM=true
Change-Id: Ic65a858962b4b3dd613fdbfa09f93d21425bf892

private/property_contexts

@@ -111,6 +111,3 @@ wlan.                   u:object_r:wifi_prop:s0
 
 # hwservicemanager properties
 hwservicemanager.       u:object_r:hwservicemanager_prop:s0
-
-# ASAN install trigger
-asan.restore_reboot  u:object_r:asan_reboot_prop:s0

public/asan_extract.te

@@ -31,6 +31,6 @@ with_asan(`
   # Restorecon will actually already try to run with sanitized libraries (libpackagelistparser).
   allow asan_extract system_data_file:file execute;
 
-  # We use asan.restore_reboot to signal a reboot is required.
-  set_prop(asan_extract, asan_reboot_prop)
+  # We need to signal a reboot when done.
+  set_prop(asan_extract, powerctl_prop)
 ')

public/property.te

-type asan_reboot_prop, property_type;
 type audio_prop, property_type, core_property_type;
 type boottime_prop, property_type;
 type bluetooth_prop, property_type;