Change mysql package for Fedora >= 19 for bare-precise

For some reason, puppetlabs-mysql used by openstack-infra
only checks if the osfamily is RedHat and set the package
name to mysql-server (which doesn't exist in fedora).
I didn't check new puppetlabs-mysql releases (openstack
is using 0.6.1 and latest one is 2.1). Perhaps in future
this patch will no longer be necessary.

Change-Id: I29fb931f1fe70dcfe46dad71a4822a75b001ca5d
Merge "Change mysql package for Fedora >= 19 for bare-precise"