Make a fallback tag for listener alarms

The deprecated .set API does not allow callers to pass in a tag to
identify their listener alarms. Making a fallback with a unique format
to identify the calls from this API.

Test: Manually inspect the alarm dump.

Bug: 141785404
Change-Id: Ifacc260a53f1d3d377dc156ce3a2404cb87684cb
Merged-In: Ifacc260a53f1d3d377dc156ce3a2404cb87684cb
(cherry picked from commit 23fa8ac9)