Description of problem:
Config parameters to let Ganesha fetch exports from RADOS objects using user specified ceph ID and ceph conf file location aren't recognized.

Version-Release number of selected component (if applicable):
V2.6-dev.5, and V2.6-dev.6

How reproducible:
Always

Steps to Reproduce:
Ganesha with CephFS backend
1. Create a RADOS object with an export block.
$ cat export.conf
EXPORT
{
        EXPORT_ID = 100;
        Path = /;
        Pseudo = /;
        Protocols = 4;
        Transports = TCP;
        FSAL {
              Name = Ceph;
        }
        CLIENT {
              Clients = 10.0.2.15;
              Access_Type = rw;
        }
}
$ sudo rados -p cephfs_data put ganesha export.conf

2. Setup ganesha.conf to read from RADOS object
$ cat /etc/ganesha/ganesha.conf
RADOS_URLS {
      ceph_conf = /etc/ceph/ceph.conf;
      userid = client.manila;
}
%url rados://cephfs_data/ganesha


3. Start ganesha server at DEBUG level, and look in the log file for RADOS_URLS config block being parsed

$ sudo /usr/bin/ganesha.nfsd -L /var/log/ganesha/ganesha.log -f /etc/ganesha/ganesha.conf -N NIV_DEBUG

$ cat /var/log/ganesha/ganehsa.log
<snip>

load_fsal :NFS STARTUP :DEBUG :Loading FSAL Ceph with /usr/lib64/ganesha/libfsalceph.so
init :FSAL :DEBUG :Ceph module registering.
init_config :FSAL :DEBUG :Ceph module setup.
create_export :FSAL :DEBUG :Ceph module export /.
fsal_cfg_commit :CONFIG :INFO :Readjusting MaxRead to FSAL, 67108864 -> 4194304
fsal_cfg_commit :CONFIG :INFO :Readjusting MaxWrite to FSAL, 67108864 -> 4194304
export_commit_common :CONFIG :INFO :Export 100 created at pseudo (/) with path (/) and tag ((null)) perms (options=02203002              ,     , -4-, ---, TCP, ----,               ,         ,                ,                )
export_commit_common :CONFIG :INFO :Export 100 has 1 defined clients
build_default_root :CONFIG :DEBUG :Pseudo root already exists
config_errs_to_log :CONFIG :WARN :Config File (/etc/ganesha/ganesha.conf:2): Unknown parameter (ceph_conf)
config_errs_to_log :CONFIG :WARN :Config File (/etc/ganesha/ganesha.conf:3): Unknown parameter (userid)
lower_my_caps :NFS STARTUP :EVENT :CAP_SYS_RESOURCE was successfully removed for proper quota management in FSAL

</snip>

Actual results:
Ganesha fetches export from RADOS URL using default ceph ID and ceph conf location. The 'ceph_conf' and 'userid' config parameters of RADOS_URLS block aren't recognized. See warning messages in the log.

Expected results:
Ganesha fetches export from RADOS url using ceph ID and ceph conf location specified in the RADOS_URLS config block.

Additional info: