expose control over unpriv perf access to shell

am: 7005e25e

* commit '7005e25e':
  expose control over unpriv perf access to shell

Change-Id: I2ea512b705a480da5c7818601c584f696c7ba3b7

property_contexts

@@ -34,6 +34,7 @@ debug.db.               u:object_r:debuggerd_prop:s0
 dumpstate.              u:object_r:dumpstate_prop:s0
 log.                    u:object_r:log_prop:s0
 log.tag.WifiHAL         u:object_r:wifi_log_prop:s0
+security.perf_harden    u:object_r:shell_prop:s0
 service.adb.root        u:object_r:shell_prop:s0
 service.adb.tcp.port    u:object_r:shell_prop:s0