Merge changes Ia4112496,If705203d,I96030891

* changes:
  wifi(proto): Compile against system_current
  WifiService: Remove usage of NotificationChannel.setBlockableSystem
  SarManager: Use public API for isVoiceCallStreamActive
tree: 07f04916460e83bcfcc31bb836fbf36b02ec5b0a
  1. apex/
  2. service/
  3. PREUPLOAD.cfg