gluster: Log volume creation before option set

Since the command to set options on the volume is being set from inside
CreateGlusterVolumeCommand, the audit logs were getting generated in a
way that looked like options were set before creating the volume.

Adjusted the audit log flow in such a way that volume creation gets
logged before setting options.

Change-Id: Icd96508e768ede181d8c0374c6de74fd9a20549f
Signed-off-by: Shireesh Anjal <sanjal@redhat.com>