salt: Fix socket path pattern match

The regular expression "^(.*)-(.*)\.(.*).asok$" for socket path can't catch
the example "ceph-mon.www-2.abc.com.asok", the cluster_name,service_type,
service_id will be incorrect.

The new regular expression  "^(.+)-(mon|osd|mds)\.(.+)\.asok$" can catch the
example and "(mon|osd|mds)" will match all service type in ceph.

Signed-off-by: Rongze Zhu <zrzhit@gmail.com>
Merge pull request #146 from zhurongze/fix-socket-path-pattern-match

Fix socket path pattern match