Fix creation of acl rules for HW PGs
Fix creation of acl rules for HW PGs

Pass SG type to create_nuage_sg_rule to
make sure that for HW PG's, rules created
are stateless.

Change-Id: Ib6664f01fda7a3488f2fff86e393a9ce8a5a1eaf
Closes-Bug: OPENSTACK-1983
(cherry picked from commit 76f1f13517de97b6ec9342fdc740289bcec14d62)

nuagenetworks/nuage-openstack-neutron,nuagenetworks/nuage-openstack-neutron