This makes it possible to fetch the min and max versions configured
directly on SSL objects (as opposed to SSL_CTX ones).
This is useful when configuring supported TLS versions on per-connection
basis.
Change-Id: Ibccc92c5f7668e9a7be5a01d6f84089608382407
Reviewed-on: https://boringssl-review.googlesource.com/c/boringssl/+/38104
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>