ConnectivityServiceTest: fix testNetworkInfoOfTypeNone

This patch fixes a couple of flakyness issues with
testNetworkInfoOfTypeNone. It also fixes some typos and naming issues.

Bug: 62918393, 62918393
Test: runtest frameworks-net
Change-Id: I1c56557ab113d3ef57dbc06a6e882634d03c5b09
1 file changed