Rename WifiScanner scan types, clean up hidden network

- Renamed WifiScanner.TYPE_* to WifiScanner.SCAN_TYPE_*
- Converted hiddenNetworks from HiddenNetwork[] to
final List<HiddenNetwork>

Bug: 143614759
Test: atest FrameworksWifiTests
Change-Id: Icf2b7040cd3514949c81c29b2cc1615b11d55770
11 files changed
tree: 13a0ff824eb2d4c6cbe63be158fddab933acd649
  1. apex/
  2. service/
  3. PREUPLOAD.cfg