wifi: Add generation support in SoftApInfo

1. Add hal generation in SoftApInfo
2. Move bssid info from HAL callback for AP+AP
3. Update metrics API to take SoftApInfo and add generation metrics.

Updated-PDD: True

Bug: 151189102
Test: atest FrameworksWifiApiTests
Change-Id: If1c2c7aa763e696f3a33a329380d727af682ea88
8 files changed
tree: 4758de353983cdd18ed8929f103b67f4f87a9314
  1. apex/
  2. service/
  3. metrics_pdd_hook.py
  4. PREUPLOAD.cfg