HIVE-8476 : JavaDoc updates to HiveEndPoint.newConnection() for secure streaming with Kerberos (Roshan Naik via Ashutosh Chauhan)

git-svn-id: https://svn.apache.org/repos/asf/hive/branches/branch-0.14@1632616 13f79535-47bb-0310-9956-ffa450edef68