Should keep updating BT devices event history after use is categorized

We want to run a long term survey for these users. The event history
should be keep updated to reflect what category the users are recently.

Bug: 325699522
Test: atest CachedBluetoothDeviceTest
Test: atest HearingAidStatsLogUtilsTest
Change-Id: I388be0b1fabcd0e141242aa8c31006234dd6bf44