[NAN] Replace HashMap with ArrayMap - reduce memory usage
am: 6323ae3253

Change-Id: Ie8e078a4f02b61366a3b941990617ddbdc50faca
tree: 67387ddf8239869c017f81ae6e5939790fbbe566
  1. libwifi_hal/
  2. libwifi_system/
  3. service/
  4. tests/