atrace.rc: allow select tracepoints on release builds

See the bug and the associated SELinux policy change (aosp/1594256)
for context.

Bug: 179788446
Change-Id: I24d94e63b06d0ec2b1b091fd635b9f059df7f75d
Merged-In: I24d94e63b06d0ec2b1b091fd635b9f059df7f75d