Add VTS tests for Wfd

This covers the following APIs by adding tests to
ISupplicantP2pIface:
ISupplicantP2pIface::enableWfd(),
ISupplicantP2pIface::setWfdDeviceInfo()

Bug: 33457575
Test: VTS tests pass

Change-Id: I52c156edf32c58b6fb6248d1b396d0437feebbfe
1 file changed