Updated the NetworkScorerAppManager to examine the list of configured
network recommendation providers and to select the first valid
provider.
As part of this update the old logic of looking for a valid network
scorer has been removed. Scorers/recommendation providers are only
selected from the configured list now. The setActiveScorer() method
has been deprecated as a result.
The NetworkScoreService has been updated to monitor the list of
potential recommendation providers and to reevaluate the binding
whenever they change. It also monitors the new setting for
NETWORK_RECOMMENDATIONS_ENABLED to connect or disconnect from the
provider as needed.
Test: runtest frameworks-services -c com.android.server.NetworkScoreServiceTest
BUG: 33158362
Change-Id: I42aeb5223da794f71f7e58cb1bdf18817200cbf2
fa4f08ecee