rhel7 patch fix

docker/Dockerfile.upf-vpp.rhel7

@@ -41,6 +41,7 @@ RUN rm -f /etc/rhsm-host && \
     yum update -y && \
     yum install -y https://dl.fedoraproject.org/pub/epel/epel-release-latest-7.noarch.rpm &&\
     yum install -y \
+        python3 \
         psmisc \
         git \
         make \

scripts/patches/rpm_dep_force_install.patch

---- a/Makefile  2021-04-30 14:53:42.462488110 +0200
-+++ b/Makefile  2021-04-30 14:50:53.189155910 +0200
+--- a/Makefile	2021-06-03 13:13:38.123080239 +0200
++++ b/Makefile	2021-06-03 13:15:58.138016487 +0200
 @@ -279,9 +279,9 @@
  else ifneq ("$(wildcard /etc/redhat-release)","")
  ifeq ($(OS_ID),rhel)
@@ -13,4 +13,3 @@
  else ifeq ($(OS_ID)-$(OS_VERSION_ID),centos-8)
  	@sudo -E dnf install $(CONFIRM) dnf-plugins-core epel-release
  	@sudo -E dnf config-manager --set-enabled \
-

scripts/tests/vpp-upf.env

+NWI_CORE=core.oai.org
+NWI_ACCESS=access.oai.org
+NWI_SGI=sgi.oai.org
+GW_ID=1
+MNC03=95
+MCC=208
+REALM=3gppnetwork.org
+NETWORK_UE_IP=12.1.1.0/24
+N3_IPV4_ADDRESS_REMOTE=192.168.75.198
+N3_IPV4_ADDRESS_LOCAL=192.168.75.202
+N4_IPV4_ADDRESS_REMOTE=192.168.74.196
+N4_IPV4_ADDRESS_LOCAL=192.168.74.202
+N6_IPV4_ADDRESS_REMOTE=192.168.76.205
+N6_IPV4_ADDRESS_LOCAL=192.168.76.202
+VPP_MAIN_CORE=0
+VPP_CORE_WORKER=1
+INTERFACE_CORE=eth1
+INTERFACE_ACCESS=eth0
+INTERFACE_SGI=eth2