resolve merge conflicts of 849c5c7 to mnc-dev

This resovles the merge conflict for ag/1514448/
After Android M, this function uses num_bssid instead of num_ap.
Both are prone to stack overflow attacks.

Bug: 31856351
Test: compile, unit tests, manual test

Change-Id: I194850a4c79ddf478d98e750f65b24e82d99ebc0
tree: 1c9497f5ac41c008466314545ce4401d48fcb148
  1. service/