MINOR: quic-stream: add qc field

Add a new member <qc> in qc_stream_desc structure. This change is
possible since previous patch which add quic-conn argument to
qc_stream_desc_new().

The purpose of this change is to simplify the future evolution of
qc-stream-desc API. This will avoid to repeat qc as argument in various
functions which already used a qc_stream_desc.
2 files changed