[WIFICOND][API] MacAddress + capability flags

Per API council feedback:
- Convert: byte[] -> MacAddress
- Formalize capability bit flags

Bug: 149105833
Test: atest android.net.wifi
Test: atest com.android.server.wifi
Change-Id: I5b8cac1112de1f34293f47fc50ce25cf51c6eeed
4 files changed
tree: 50ea849cbd135f775450f559bbee21f830a6828e
  1. apex/
  2. service/
  3. PREUPLOAD.cfg