Avoid quick shutdown after a driver start

Causes problems on our wext driver and potentially on cfg
based driver as well.

NLP can trigger very quick acquire and release within seconds
leading to driver switching between start and stop state.

We now keep driver up for atleast couple of minutes after a start

Bug: 5478196
Change-Id: I1b261578252c5fb9a65446241b51e5686d4d9cc3