Add trace logs in Launcher for perfetto to investigate two line issue

bug:375267130
Test manually screenshot:
onIdpChange: https://screenshot.googleplex.com/ASbyGFoAhTXgnWK
statefulActivityOnConfigChange: https://screenshot.googleplex.com/gLqxeJN7TzUURCy
Flag: NONE adding traces to perfetto

Change-Id: Ib2ac49fb8668fdfc91c8e38b91a4afd10127a4c5
3 files changed