add juniper-acx7024 images elevation (#2030)

* add juniper-acx7024 images elevation

Signed-off-by: Antoine Vicot <antoine.vicot@ovhcloud.com>

* add juniper-acx7024 images elevation

Signed-off-by: Antoine Vicot <antoine.vicot@ovhcloud.com>

* fix front/rear image

Signed-off-by: Antoine Vicot <antoine.vicot@ovhcloud.com>

* fix juniper-acx7024-ac.front

Signed-off-by: Antoine Vicot <antoine.vicot@ovhcloud.com>

---------

Signed-off-by: Antoine Vicot <antoine.vicot@ovhcloud.com>

device-types/Juniper/ACX7024-AC.yaml

@@ -9,6 +9,8 @@ weight_unit: lb
 airflow: front-to-rear
 is_full_depth: false
 comments: '[Juniper ACX7024-AC Datasheet](https://www.juniper.net/us/en/products/routers/acx-series/acx7000-family-cloud-metro-routers/acx7000-line/acx7024-acx7024x-cloud-metro-routers-datasheet.html)'
+front_image: true
+rear_image: true
 console-ports:
   - name: Console
     type: rj-45