Add regular expression to search for
mysql in pacemaker config

- Format of mysql resource was changed in pacemaker
configuration file. Also it's going to be master/slave
in the nearest future. To cover this case regular
expression was added

Change-Id: I7c5eb28fbfdf364b56bc2135af6317533b3faff4
Closes-Bug: #1391093
Merge "Add regular expression to search for mysql in pacemaker config"