Wifi network selection tuneup

Changes to BubbleFunScorer:
1. Do the additive awards after the multiplicative band adjustment.
2. Decouple CURRENT_NETWORK_BOOST and LAST_SELECTION_BOOST.
3. Replace the coefficients with values that are optimized to make
   decisions similar to CompatibilityScorer, especially in non-fringe
   conditions.
4. Update identifier.

Adjusted one unit test, keeping the same rssi delta of 9 dB but moving
away from the fringe condition.

Bug: 136675430
Test: atest CandidateScorerTest
Change-Id: I2832835c513f0b7b9622d5bb1c5545cfa98096d9
2 files changed
tree: d2c6971b318b0a666b69008205ed4b7aafac2ddd
  1. service/
  2. PREUPLOAD.cfg