vfs_glusterfs: Enable profiling for file system operations

vfs_glusterfs: Enable profiling for file system operations

BUG: https://bugzilla.samba.org/show_bug.cgi?id=14093

Signed-off-by: Anoop C S <anoopcs@redhat.com>
Reviewed-by: Guenther Deschner <gd@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
Autobuild-User(master): Jeremy Allison <jra@samba.org>
Autobuild-Date(master): Tue Aug 20 19:25:28 UTC 2019 on sn-devel-184

Autobuild-User(v4-9-test): Karolin Seeger <kseeger@samba.org>
Autobuild-Date(v4-9-test): Mon Aug 26 13:26:08 UTC 2019 on sn-devel-144