Wifi: move some WifiHealthMonitor parameters to DeviceConfig

Move some WifiHealthMonitor related parameters to DeviceConfig for the
later tuning.

Bug: 147904985
Test: manual test with phones.
Test: atest com.android.server.wifi
Change-Id: I375669452cb2461a9184a56d0a8cf95e8a2ec336
7 files changed
tree: efd1a60be60ac6be6e0883f6e258b66e923b435b
  1. apex/
  2. service/
  3. PREUPLOAD.cfg