Merge changes from topics "frameworkswifiapitests-jacoco", "settingsunittests-wifi-systemapi", "sl4a-access-wifi-hidden-apis"
* changes:
Remove FrameworksWifiApiTests jacoco exclude_filter
FrameworksWifiApiTests: build against framework-wifi (Attempt 2)
Convert FrameworksWifiApiTests mk to bp (Attempt 2)
Give SL4A access to @hide Wifi APIs
Expose WifiInfo & NetworkSelectionStatus Builders for SettingsUnitTests
Expose WifiEnterpriseConfig.getClientPrivateKey() for WifiConfigurationProviderTest
Expose ScanResult constructor for SettingsLibRoboTests
SettingsLibTests: grant access to Wifi @hide APIs
TetheringTests: Stop using @hide Wifi P2P APIs