WifiConnectivityManager: Fallback to BBM when MAC randomization disabled

When both the current and target networks have MAC randomization
disabled, fallback to single STA BBM (since we cannot have concurrent
connection using the same factory MAC address).

Bug: 179939824
Test: atest com.android.server.wifi
Change-Id: Ia8b8782cdcf4a1f2d1287eeeecce94ea0915e61d
2 files changed