Removing the DEBUG flag check while logging traces

This CL has 2 changes
1. Not checking the DEBUG flag when logging the traces
2. Changing the utility used to log the trace to Trace.traceBegin(...)
   method. This is to log the traces in the SystemServer context, aginst
   the old method which logged the traces in the app context

Bug: 249306380
Test: Manual
Change-Id: Id32799cd9a11d984ae4bf9d69f59167b1636068b