Add creator token optimization

if the creator package is the same as the target package of the
top level intent that is being started, skip adding creator token
for its embedded intents. This is a case where extra intents were
passed around within one app.

Bug: 368559550
Test: regression tests like ActivityManagerServiceTest and manual test
Flag: android.security.prevent_intent_redirect
Change-Id: I10c032d227b130c2a89b9961fe48f116d88bb4e3