telemetry: rename the ambient atom for consistency & update comment

- ambient_mode_changed_reported -> ambient_mode_changed.
- update the comment.

BUG: 244263466
Change-Id: I4973d669d84148b89a69f0e66e33c0e553f1b31c
1 file changed
tree: 95b59f02e8b7c84bfd95703063a337a0d5cc9225
  1. stats/
  2. OWNERS