fix docker file of nrUE on rhel

docker/Dockerfile.nrUE.rhel8.2

 #/*
-# * Licensed to the OpenAirInterface (OAI) Software Alliance under one or more
-# * contributor license agreements.  See the NOTICE file distributed with
-# * this work for additional information regarding copyright ownership.
-# * The OpenAirInterface Software Alliance licenses this file to You under
-# * the OAI Public License, Version 1.1  (the "License"); you may not use this file
-# * except in compliance with the License.
-# * You may obtain a copy of the License at
-# *
-# *      http://www.openairinterface.org/?page_id=698
-# *
-# * Unless required by applicable law or agreed to in writing, software
-# * distributed under the License is distributed on an "AS IS" BASIS,
-# * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# * See the License for the specific language governing permissions and
-# * limitations under the License.
 # *-------------------------------------------------------------------------------
 # * For more information about the OpenAirInterface (OAI) Software Alliance:
 # *      contact@openairinterface.org