Add Pixel Atrace hal to readtracefs group

This hal replaces the default hal on Pixel devices and also needs
permission to enable and disable trace events.

Bug: 214591300
Test: adb shell perfetto --background --txt -c
      data/misc/perfetto-configs/trace_config_detailed.textproto -o
      data/misc/perfetto-traces/output.pb
      Check no atrace errors in logcat
Change-Id: Idb6615be847d370a665994251f6ce75c0aa57b8b
Merged-In: Idb6615be847d370a665994251f6ce75c0aa57b8b
1 file changed