SERVER-43359 Added missing RHEL8 config

(cherry picked from commit e987876)

SERVER-43359 Added enterprise RHEL8 repo config

(cherry picked from commit d3d6456)
(cherry picked from commit 659ac46566e8da7f088774acdbaed16017995a5f)
(cherry picked from commit 0b5af52)

Author: spencerjackson

etc/repo_config.yaml

@@ -82,6 +82,14 @@ repos:
       - yum/redhat/7/mongodb-org
       - yum/redhat/7Server/mongodb-org
 
+  - name: rhel80
+    type: rpm
+    edition: org
+    bucket: repo.mongodb.org
+    repos:
+      - yum/redhat/8/mongodb-org
+      - yum/redhat/8Server/mongodb-org
+
   - name: amazon
     type: rpm
     edition: org
@@ -210,6 +218,14 @@ repos:
       - yum/redhat/7/mongodb-enterprise
       - yum/redhat/7Server/mongodb-enterprise
 
+  - name: rhel80
+    type: rpm
+    edition: enterprise
+    bucket: repo.mongodb.com
+    repos:
+      - yum/redhat/8/mongodb-enterprise
+      - yum/redhat/8Server/mongodb-enterprise
+
   - name: amazon
     type: rpm
     edition: enterprise