Add more VTS tests for ISupplicantNetwork

This covers the following APIs by adding tests to
ISupplicantStaNetwork:
ISupplicantNetwork::getInterfaceName(),
ISupplicantNetwork::getType()

Bug: 33457575
Test: VTS tests pass
Change-Id: I9a24195cefefcc23b7603ff33b66a497eba07148
1 file changed