Add trace redactor to system

This change adds the trace_redactor binary to system so that it can be
called from the Profiling module.

Bug: 327423523
Test: build and flash phone, verify binary is avalable at /system/bin.
Ignore-AOSP-First: Profiling changes are not in AOSP yet, will merge at
later date.

Change-Id: I661fca73c02e2904b988b4bddce62f09c7e3a5d7