1. All ConnectivityManagerApi23Test were failed due to
WifiManager#setWifiEnabled doesn't allow to use since
Android Q. So we need to use shell command to enable/disable
Wi-Fi instead.
2. Some methods are duplicated between
ConnectivityManagerApi23Test and ConnectivityManagerTest, but
they are not identical. So put these methods into
ConnectivityUtils to clean up duplications and prevent fork
happened again.
Bug: 133334943
Bug: 133209319
Test: Run the below tests on Crosshatch, Sailfish, Bonito.
atest CtsNetApi23TestCases
atest CtsNetTestCases
Change-Id: Ic37111cb12a46f5c36c2be887250c5d762216f6e
1. Indicating CtsNetTestCases support instant app mode but
ignore some tests that cannot run in instant app mode.
2. Move some tests which need to test on API 23 into
CtsNetApi23TestCases module due to instant app package
must target at least API 26.
Bug: 123366918
Test: atest CtsNetTestCases --instant
Test: atest CtsNetApi23TestCases
Test: atest FrameworksNetTests
Change-Id: I4e828cbc48143e36c1be38b91c3c698122d4be5a
