To avoid stale data in logs, and avoid risk of race conditions, have

StatusBarNotification create a new LogMaker each time it is requested,
instead of trying to keep and reuse one.

Bug: 124924850
Test: atest frameworks/base/services/tests/uiservicestests/src/com/android/server/notification frameworks/base/core/tests/coretests/src/android/service/notification SystemUITests

Change-Id: I0fe3c17b5c9534fd486575b6a3c20fdd43cc28f5