GitLab

Allow immediate single scan for scenarios such as user allows
untrusted networks, user forces a connectivity scan, and etc.
The minimum scan interval is enforced only for the screen state
change and connection state change cases.

Also removed the scan started by WCM for user selected network.
We connect to the user selected network by directly invoking
the wpa_supplicant select_network. Now WCM always sets the
'forceSelectNetwork' parameter to false when calling into
WifiQualifiedNetworkSelector.selectQualifiedNetwork(). So deleted
the unused variable mForceSelectNetwork.

Bug: 29103349
Change-Id: I1dd77af0cf7de85a96afac63de1344daab192968