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