avoid generating reserved local MACs

Avoid generating WifiInfo.DEFAULT_MAC_ADDRESS as a randomized MAC
address since it's being used for another purpose.

Bug: 137796328
Test: atest MacAddressTest
Change-Id: Ia7beef0d0af5d7b39845e662cd343d81aef97702
1 file changed
tree: 88a335e66caf0ec1fd58ce44157e722c4fb0f956
  1. core/
  2. services/
  3. tests/