[automerger skipped] Merge "Add system_server to readtracefs group" into sc-v2-dev am: 63f3810e -s ours

am skip reason: Merged-In I4139605eb7c5277887092b3d6a3fb26bf4f8f171 with SHA-1 57bbd009 is already in history

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/16639385

Change-Id: I731ce367049698eb07cb68857ba79cc982be2a22