Disallow updating SG rule direction in RESOURCE_ATTRIBUTE_MAP
Disallow updating SG rule direction in RESOURCE_ATTRIBUTE_MAP

It doesn't make much sense to allow updating only the direction.
I suppose it was a bug in the first place.

Partial-Bug: #1521099
Change-Id: Idfd48c801be3cd34286595f5ca3c9d629a296200

wolverineav/neutron,klmitch/neutron,sebrandon1/neutron,cloudbase/neutron,dims/neutron,noironetworks/neutron,bigswitch/neutron,igor-toga/local-snat,huntxu/neutron,sebrandon1/neutron,apporc/neutron,bigswitch/neutron,klmitch/neutron,openstack/neutron,openstack/neutron,cloudbase/neutron,mahak/neutron,wolverineav/neutron,mahak/neutron,huntxu/neutron,eayunstack/neutron,MaximNevrov/neutron,igor-toga/local-snat,eayunstack/neutron,apporc/neutron,MaximNevrov/neutron,openstack/neutron,dims/neutron,mahak/neutron,noironetworks/neutron