wifi/CompatibilityScorer: Break ties using rssi

Since this score calculation treats all sufficiently strong signals as
equivalent, it is easy to get ties. SavedNetworkEvaluator breaks these
ties using RSSI, when it calls setNetworkCandidateScanResult.

Add a tie-breaking tiny multiple of RSSI to accomplish the same thing.

Bug: 128937950
Test: atest FrameworksWifiTests
Change-Id: Ife49e318a1a42cf5913870ffc050358acd106d08
1 file changed