Settings: switch to using ctl.start property instead of exec logcat

- Moves policy of what to do with buffer size changes to logd

Bug: 23685592
Change-Id: I0b12c452e01b94d264d12b30f9040f646e609340

system_app.te

@@ -36,13 +36,16 @@ allow system_app wallpaper_file:file r_file_perms;
 # Write to properties
 set_prop(system_app, debug_prop)
 set_prop(system_app, system_prop)
-set_prop(system_app, ctl_bugreport_prop)
 set_prop(system_app, logd_prop)
 set_prop(system_app, net_radio_prop)
 set_prop(system_app, system_radio_prop)
 auditallow system_app net_radio_prop:property_service set;
 auditallow system_app system_radio_prop:property_service set;
 
+# ctl interface
+set_prop(system_app, ctl_default_prop)
+set_prop(system_app, ctl_bugreport_prop)
+
 # Create /data/anr/traces.txt.
 allow system_app anr_data_file:dir ra_dir_perms;
 allow system_app anr_data_file:file create_file_perms;