MINOR: quic: add QUIC support when no client_hello_cb

Add QUIC support to the ssl_sock_switchctx_cbk() variant used only when
no client_hello_cb is available.

This could be used with libreSSL implementation of QUIC for example.
It also works with quictls when HAVE_SSL_CLIENT_HELLO_CB is removed from
openss-compat.h
1 file changed