Allow configuring QUIC method per-connection

This allows sharing SSL_CTX between TCP and QUIC connections, such that
common settings can be configured without having to duplicate the
context.

Change-Id: Ie920e7f2a772dd6c6c7b63fdac243914ac5b7b26
Reviewed-on: https://boringssl-review.googlesource.com/c/33904
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
diff --git a/ssl/ssl_versions.cc b/ssl/ssl_versions.cc
index 39540f1..e6dbc8d 100644
--- a/ssl/ssl_versions.cc
+++ b/ssl/ssl_versions.cc
@@ -192,7 +192,7 @@
   uint16_t max_version = hs->config->conf_max_version;
 
   // QUIC requires TLS 1.3.
-  if (hs->ssl->ctx->quic_method && min_version < TLS1_3_VERSION) {
+  if (hs->ssl->quic_method && min_version < TLS1_3_VERSION) {
     min_version = TLS1_3_VERSION;
   }