CHANGELOG: update from 12215
CHANGELOG: update from 12215

Change-Id: I17e076554a56c95fabd95af111eccd8d7409966b

mqliang/etcd,coreos/etcd,mkumatag/etcd,mkumatag/etcd,etcd-io/etcd,mqliang/etcd,rnaveiras/etcd,etcd-io/etcd,rnaveiras/etcd,gyuho/etcd,li-ang/etcd,mkumatag/etcd,rnaveiras/etcd,gyuho/etcd,mqliang/etcd,coreos/etcd,etcd-io/etcd,ajityagaty/etcd,ajityagaty/etcd,ajityagaty/etcd,li-ang/etcd