Camera service: Improve binder death logs and reduce start/stop logging

- Fix the incorrect client PID and add the client package name in case
  of binder death.
- Adjust several startup and shutdown logs to not log by default, to
  reduce logcat volume for normal operation.

Bug: 159234034
Test: Kill active camera client, observe logcat.
Flag: EXEMPT minor bugfix
Change-Id: Ia88df9e4c7f38bf03f52fcd7fe550fd1b69b894c