static List<PrivRequirement> newPrivRequirementList(PrivRequirement... privs) {
      return new ArrayList<PrivRequirement>(Arrays.asList(privs));
    }
Utility function that converts PrivRequirement array into list
@param privs
@return
ql/src/java/org/apache/hadoop/hive/ql/security/authorization/plugin/sqlstd/Operation2Privilege.java