Merge changes Ibabe0814,Ic7673cb3,I92846f1f,I522b11ef

* changes:
  WifiConfigStore: Encrypt credentials for networks (4/4)
  WifiConfigStore: Encrypt credentials for networks (3/4)
  WifiConfigStore: Encrypt credentials for networks (2/4)
  WifiConfigStore: Encrypt credentials for networks (1/4)
tree: 5a7b5bf7db83667fd11468d1cd66ed405c010394
  1. service/
  2. PREUPLOAD.cfg