Prevent PreRebootLogger blocking shutdown thread

Add timeout to PreRebootLogger and only perform prereboot dump when adb
enabled and having active staged session.

Fix: 156624012
Bug: 156339996
Bug: 153287806
Test: atest PreRebootLoggerTest
Test: manual verify it actually timeout
Change-Id: I5dcc8fd19f5aec5f29528c0f3ff2c0e05a5a745d