Fix more logspam from HAL and WifiStateMachine [DO NOT MERGE]

(cherry-picked from e73629f79c8bd59f0f0857a5101160a4d93b1190)

This change also fixes multiple HAL listening threads
and few more logs from WifiScanner

Bug: 20416721

Change-Id: I58f9940d57b27752287e594ecca394c206eb060f
3 files changed
tree: 938c63299e526de7a0fef62458adbe49f4421707
  1. service/