Fix settings handling of wifi events

When wifi events come out, settings has to change the switch state.
Changing switch state causes settings to also enable/disable wifi which
gets into a loop when there is a driver hung event.

Fix to only send framework calls when a user has changed the switch
settings

Bug: 5271322
Change-Id: I0a7d03a3fe0f28622de05981e5f72a9a8814b2d2