Fix RingBuilder._build_max_replicas_by_tier docstring
Fix RingBuilder._build_max_replicas_by_tier docstring

The current docstring doesn't include zones, and the order of the
entries is not up to date with the current code. Let's fix this.

Change-Id: Ibabd79427b83d9e8c86b2caeb93dee219c8274c0

tipabu/swift,tipabu/swift,revoer/keystone-8.0.0,zackmdavis/swift,hurricanerix/swift,hbhdytf/mac2,daasbank/swift,levythu/swift,Akanoa/swift,mjzmjz/swift,larsbutler/swift,eatbyte/Swift,gold3bear/swift,bkolli/swift,IPVL/swift-kilo,redhat-openstack/swift,shibaniahegde/OpenStak_swift,hbhdytf/mac2,notmyname/swift,tipabu/swift,Akanoa/swift,matthewoliver/swift,bouncestorage/swift,bkolli/swift,matthewoliver/swift,thiagodasilva/swift,swiftstack/swift,gold3bear/swift,nadeemsyed/swift,psachin/swift,openstack/swift,openstack/swift,smerritt/swift,takeshineshiro/swift,bradleypj823/swift,rackerlabs/swift,notmyname/swift,hbhdytf/mac,tipabu/swift,hbhdytf/mac,hurricanerix/swift,smerritt/swift,prashanthpai/swift,thiagodasilva/swift,hurricanerix/swift,openstack/swift,nadeemsyed/swift,swiftstack/swift,clayg/swift,wenhuizhang/swift,dencaval/swift,notmyname/swift,iostackproject/IO-Bandwidth-Differentiation,iostackproject/IO-Bandwidth-Differentiation,mjwtom/swift,nadeemsyed/swift,zackmdavis/swift,mjwtom/swift,AfonsoFGarcia/swift,bouncestorage/swift,levythu/swift,hbhdytf/mac2,aerwin3/swift,scality/ScalitySproxydSwift,Seagate/swift,clayg/swift,psachin/swift,takeshineshiro/swift,revoer/keystone-8.0.0,psachin/swift,hbhdytf/mac2,Seagate/swift,larsbutler/swift,redhat-openstack/swift,IPVL/swift-kilo,maginatics/swift,matthewoliver/swift,clayg/swift,matthewoliver/swift,eatbyte/Swift,dpgoetz/swift,notmyname/swift,hurricanerix/swift,daasbank/swift,anishnarang/gswift,anishnarang/gswift,rackerlabs/swift,williamthegrey/swift,maginatics/swift,wenhuizhang/swift,clayg/swift,shibaniahegde/OpenStak_swift,redbo/swift,smerritt/swift,mjzmjz/swift,dencaval/swift,prashanthpai/swift,scality/ScalitySproxydSwift,bradleypj823/swift,AfonsoFGarcia/swift,smerritt/swift,williamthegrey/swift,psachin/swift,nadeemsyed/swift,redbo/swift,dpgoetz/swift,Em-Pan/swift,aerwin3/swift,swiftstack/swift,openstack/swift,Em-Pan/swift