expose control over unpriv perf access to shell

am: 38ac77e4

* commit '38ac77e4':
  expose control over unpriv perf access to shell

Change-Id: I3fb4eb3edfcf68ce678e8cf1566a29e70d6cf1c3

property_contexts

@@ -33,6 +33,7 @@ debug.                  u:object_r:debug_prop:s0
 debug.db.               u:object_r:debuggerd_prop:s0
 dumpstate.              u:object_r:dumpstate_prop:s0
 log.                    u:object_r:shell_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