Add repo file list to group var

ansible/group_vars/all

 ---
+  yum_repo_files: []
   pkg_list: []

ansible/group_vars/base

 ---
+  yum_repo_files:
+    - ceph.repo
+    - dell-system-update.repo
+    - elastic.repo
+    - nux-dextop.repo
   pkg_list:
     - "GConf2-3.2.6"
     - "GeoIP-1.5.0"

ansible/group_vars/compute

 ---
+  yum_repo_files:
+    - TurboVNC.repo
+    - cm.repo
   pkg_list:
     - "ImageMagick-6.9.10.68"
     - "Lmod-7.8.11"

ansible/group_vars/gpu

 ---
+  yum_repo_files: []
   pkg_list:
     - "cuda-dcgm-1:2.3.5.1"
     - "cuda-dcgm-libs-1:2.3.5.1"

ansible/group_vars/ood

 ---
+  yum_repo_files: []
   pkg_list:
     - "BIOS_8JY6W_LN64_2.14.2-2.14.2"
     - "Diagnostics_Application_PX25H_LN64_4301A70_4301.71-4301A70"