Address MAC randomization API council feedback

Rename WifiConfiguration.RANDOMIZATION_ENHANCED to
WifiConfiguration.RANDOMIZATION_NON_PERSISTENT
Also change the WifiNetworkSuggestion API to set a enum instead of
boolean.

Bug: 179116304
Test: atest com.android.server.wifi

Change-Id: I3fcf0a4735e8e90ccd154102000b0e468e7eff1c
11 files changed