purge-cluster: add new version of libcephfs2
purge-cluster: add new version of libcephfs2

the libcephfs version was bumped to 2, so we need to check for that as
well when we're removing all ceph packages

Signed-off-by: Casey Bodley <2544ff357e70e8520f24ff4e53fde352cbf7d2cf@redhat.com>

albertomurillo/ceph-ansible,travmi/ceph-ansible,jtaleric/ceph-ansible,fgal/ceph-ansible,font/ceph-ansible,font/ceph-ansible,jtaleric/ceph-ansible,travmi/ceph-ansible,WingkaiHo/ceph-ansible,albertomurillo/ceph-ansible,ceph/ceph-ansible,albertomurillo/ceph-ansible,bengland2/ceph-ansible,ceph/ceph-ansible,WingkaiHo/ceph-ansible,bengland2/ceph-ansible,WingkaiHo/ceph-ansible,fgal/ceph-ansible