Previously, if one tried to add a rule to allow all ingress ipv4 neutron
would respond that the rule was already part of the security group.
This happened as the filter for querying existing rules uses a wildcard for
remote_group_id thus returning a false match. This patch addresses
this issue.
Change-Id: I0320013a3869d25fb424995354721929465d2848
Closes-bug: #1252806
9335ffd7c3