Update ConnDiags CTS test to expect validation result SKIPPED.

This CL updates ConnectivityDiagnosticsManagerTest to expect
NETWORK_VALIDATION_RESULT_SKIPPED for its TestNetworks. The tests also
expect a ConnectivityReport to be sent for all calls to
ConnectivityManager#reportNetworkConnectivity.

This change is different from the one pushed into AOSP & the mainline
modules; this allows both SKIPPED and VALID in the intermediate time
while module prebuilts are generated. MTS will enforce the stricter
SKIPPED check, while this allows both the S-release behavior and
mainline update behavior.

Bug: 162407730
Bug: 195727283
Test: atest ConnectivityDiagnosticsManagerTest
Change-Id: Ia0bf1bb53289b079f26597f09b0759a89deb681f
Merged-In: I78b78919d5b0f09348dfdd5fdb37418b8c7f861f
1 file changed