init.common.rc: Set /sys/kernel/debug/tracing permissions am: 66c35f4033 am: 4e56b2d1a9

Original change: https://android-review.googlesource.com/c/device/linaro/dragonboard/+/1345439

Change-Id: I361e41dbb05638a2ecf408da8190af40dccb4dd6
diff --git a/init.common.rc b/init.common.rc
index 2ce8b0a..247a161 100644
--- a/init.common.rc
+++ b/init.common.rc
@@ -35,6 +35,8 @@
     mkdir /data/vendor/wifi/wpa/sockets 0770 wifi wifi
 
 on property:sys.boot_completed=1
+    chmod 0755 /sys/kernel/debug/tracing
+
     # update cpuset now that processors are up
     # Foreground should contain most cores (7 is reserved for top-app)
     write /dev/cpuset/foreground/cpus 0-6