MFH: r489983

net/ocserv: update to 0.12.2

Noteworthy changes in 0.12.2

• Added support for AES256-SHA legacy cipher. This allows the anyconnect clients to use AES256.
• Added support for the DTLS1.2 protocol hack used by new anyconnect client.

While I'm here pet portlint.

Approved by: ports-secteam (miwi)