Change PerfettoTrigger throttling to be per trigger name

This is to allow us to collect more representative traces even if one of
the triggers is invoked more frequently than other.

Increased the throttling to be 5min per trigger name

Bug: 213920740
Test: manual - flashed and checked logcat
Change-Id: I078c640cc1e72c4ce8641b047fc90eb13bc8f2a4