Trying to connect to an ssl socket will trigger an assertion
now if there is no valid TransportSecurityState specified.
Hence, we create one now and pass it with the
HttpNetworkSession::Params.

Change-Id: I61cda2d0b662a95d32085092e74e0499c008c57f
Reviewed-by: Andras Becsi <andras.becsi@digia.com>