Add VTS tests for ISupplicantIface

This covers the following APIs by adding tests to both
ISupplicantStaIface and ISupplicantP2pIface:
ISupplicantIface::getName(),
ISupplicantIface::getType()

Bug: 33457575
Test: VTS tests pass

Change-Id: Ibbc4be2e367fc6f179005696724cccbcca58d10f
2 files changed