[openssl/openssl] b80395: Add dgram API discussion

[Hugo Landau]

  Branch: refs/heads/master
  Home:   https://github.openssl.org/openssl/openssl
  Commit: b80395efc91e97fdd0ec724c3e3b814195affe21
      https://github.openssl.org/openssl/openssl/commit/b80395efc91e97fdd0ec724c3e3b814195affe21
  Author: Hugo Landau <hlandau at openssl.org>
  Date:   2022-06-22 (Wed, 22 Jun 2022)

  Changed paths:
    A doc/designs/quic-design/dgram-api.md

  Log Message:
  -----------
  Add dgram API discussion

Reviewed-by: Tomas Mraz <tomas at openssl.org>
Reviewed-by: Paul Dale <pauli at openssl.org>
(Merged from https://github.com/openssl/openssl/pull/18210)