Use mysql-server-wsrep package for zabbix

The issue with mysql-server - it doesnot do mysql
install when /var/lib/mysql is present
it is fixed in mysql-server-wsrep

Related patch: I2869a7ab341b7069a3b9d943cff9680ea5bf0439

Change-Id: I3199071295a184d2e9f9861f2e5024580cac78ae
Partial-Bug: 1341691
Related-Bug: 1334588
Merge "Use mysql-server-wsrep package for zabbix"