glusterd: Bump max op version

Change-Id: Ic66a0a751233ebbcb65d13f7e3265a046fae9a0b
BUG: 1125431
Signed-off-by: Atin Mukherjee <amukherj@redhat.com>
Reviewed-on: http://review.gluster.org/8397
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Humble Devassy Chirammal <humble.devassy@gmail.com>
Reviewed-by: Kaushal M <kaushal@redhat.com>