Bug 1335831: Pass on AddrMgmtSubnetExhausted exception from api server to the caller and in schema transformer, handle this error

Change-Id: I2a749ada4db7eaa43b077caab8197c79d1dbf068
Merge "Bug 1335831: Pass on AddrMgmtSubnetExhausted exception from api server to the caller and in schema transformer, handle this error"