This updates the ceph-mon and ceph-osd charts to use the release
name for the hostpath defined for mounting the /var/log/ceph
directories to. This gives us a mechanism for creating unique log
directories for multiple releases of the same chart without the
need for specifying an override for each deployment of that chart
Change-Id: Ie6e05b99c32f24440fbade02d59c7bb14d8aa4c8
45da8c2b69