Correct the defined value of Maximize compatibility

- The return value defined by the Wi-Fi framework API is opposite to the
UI
  Compatibility on:  isBridgedModeOpportunisticShutdownEnabled() = false
  Compatibility off: isBridgedModeOpportunisticShutdownEnabled() = true

- Need to use the reverse value from Settings UI to the Wi-Fi framework API.

Bug: 183576049
Test: manual test
atest -c WifiTetherMaximizeCompatibilityPreferenceControllerTest

Change-Id: I731156806661bfbca14e7eaaa648a205a3d77b74