MFH: r467817 r467818
mysql56-{client, server}: Update port to 5.6.40
This update includes fixes for multiple CVEs including:
CVE-2018-2755 in replication component, MySQL protocol CVE-2018-2805 in GIS extention CVE-2018-2782 in InnoDB and more info on http://www.oracle.com/technetwork/security-advisory/cpuapr2018-3678067.html#AppendixMSQL
databases/mysql56-server: Add missed distinfo for r467817
Approved by: ports-secteam (feld)