Teaches the ProcessCpuTracker about USAPs.

This CL updates the ProcessCpuTracer.getName method to force a refresh
of the process name when the current state indicates that it was named
either 'usap32' or 'usap64'.  This will prevent false attribution of
process statistics to system service processes.

Bug: 146614089
Test: Treehugger
Change-Id: Ieca4715b7aeb44ef7d1ec98773b25bdfa0a9fc6b