Add notify_time and time-reconnect for v2.7.1

Version 2.7.1 introduced 2 new tunables for agents: "notify_time" and "time-reconnect"
This PR serves to add them to the ossec cookbook for those that wish to use version 2.7.1 or higher.  Currently this cookbook defaults to 2.7.

Change source:
http://www.ossec.net/files/ossec-hids-2.7.1-release-note.txt