Reload wifi configs if we're connected but have no configs

Main wifi thread may timeout waiting for driver ready after SSR, and
return an empty list of wifi configs for
getPrivilegedConfiguredNetworks(). Thus we should reload the list if
we connect to a network but have no wifi configurations, which is an
unexpected state.

Bug: 242264589
Test: atest WifiPickerTrackerTest
Change-Id: I536c9f86a220dec97e935737c91dfaf4fc792645
2 files changed