[WifiVendorHal] Background Scans - Unit tests

Also add the AP mode version of freq-for-band.

Bug: 34899890
Test: New unit tests

Change-Id: If35ab50a9fadf45d0cc0285b9b1f10396ed917e1
2 files changed
tree: c161462fdbf81d1fef748b200555ef9f49681577
  1. libwifi_hal/
  2. libwifi_system/
  3. service/
  4. tests/
  5. PREUPLOAD.cfg