gluster: fill task parameters in async task status query

  Updating the async task with task parameters in async task
status query so that task summary gets updated with proper
volume name

Change-Id: I3cf2f7cc9f633d99a673879a0876919ead5fb843
Bug-Url: https://bugzilla.redhat.com/1037607
Signed-off-by: Ramesh Nachimuthu <rnachimu@redhat.com>