Sync the DB2 communication error code change from olso
Sync the DB2 communication error code change from olso

Closes-Bug: #1244092

oslo patch set: 3acd57c2825a8bf6660c3124f12794414622eb26

Change-Id: I105ff3691804c6c77548d3250cc241293397187f

derekchiang/keystone,vivekdhayaal/keystone,roopali8/keystone,reeshupatel/demo,rajalokan/keystone,klmitch/keystone,nuxeh/keystone,roopali8/keystone,JioCloud/keystone,cernops/keystone,jumpstarter-io/keystone,maestro-hybrid-cloud/keystone,rajalokan/keystone,UTSA-ICS/keystone-kerberos,mahak/keystone,vivekdhayaal/keystone,promptworks/keystone,dsiddharth/access-keys,promptworks/keystone,idjaw/keystone,dsiddharth/access-keys,mahak/keystone,himanshu-setia/keystone,rodrigods/keystone,ilay09/keystone,idjaw/keystone,dims/keystone,ilay09/keystone,openstack/keystone,nuxeh/keystone,MaheshIBM/keystone,himanshu-setia/keystone,derekchiang/keystone,jonnary/keystone,rodrigods/keystone,dstanek/keystone,vivekdhayaal/keystone,dstanek/keystone,ajayaa/keystone,reeshupatel/demo,UTSA-ICS/keystone-kerberos,ilay09/keystone,rajalokan/keystone,rushiagr/keystone,maestro-hybrid-cloud/keystone,takeshineshiro/keystone,JioCloud/keystone,jumpstarter-io/keystone,rushiagr/keystone,dsiddharth/access-keys,ging/keystone,blueboxgroup/keystone,MaheshIBM/keystone,takeshineshiro/keystone,openstack/keystone,openstack/keystone,mahak/keystone,derekchiang/keystone,ging/keystone,jumpstarter-io/keystone,dstanek/keystone,promptworks/keystone,ajayaa/keystone,reeshupatel/demo,klmitch/keystone,jamielennox/keystone,nuxeh/keystone,cernops/keystone,jonnary/keystone,jamielennox/keystone,dims/keystone,blueboxgroup/keystone,rushiagr/keystone