Move SSL_get_peer_* to Connection information.

This is arguably more commonly queried connection information than the
tls-unique.

Change-Id: I1f080536153ba9f178af8e92cb43b03df37110b5
Reviewed-on: https://boringssl-review.googlesource.com/5874
Reviewed-by: Adam Langley <agl@google.com>
2 files changed