Merge \\\"add a property for controlling perf_event_paranoid\\\" into mnc-dev...

Merge \\\"add a property for controlling perf_event_paranoid\\\" into mnc-dev am: 050243df am: f11efb25
am: 2a311a9b

Change-Id: I6ea7f744704405be67cf3cfa175b4142b5255e05

rootdir/init.rc

@@ -552,6 +552,11 @@ on property:sys.sysctl.extra_free_kbytes=*
 on property:sys.sysctl.tcp_def_init_rwnd=*
     write /proc/sys/net/ipv4/tcp_default_init_rwnd ${sys.sysctl.tcp_def_init_rwnd}
 
+on property:security.perf_harden=0
+    write /proc/sys/kernel/perf_event_paranoid 1
+
+on property:security.perf_harden=1
+    write /proc/sys/kernel/perf_event_paranoid 3
 
 ## Daemon processes to be run by init.
 ##