meta-ethanolx: Populate "redfish/v1/Systems/system"

The "redfish/v1/Systems/system" page is necessary to fill the
"Server information" panel in the webui-vue application.

Change-Id: Id8ee7b6ab504cd38916f92fd6dda9d99dfdd898c
Signed-off-by: Konstantin Aladyshev <aladyshev22@gmail.com>
diff --git a/meta-amd/meta-ethanolx/recipes-phosphor/configuration/entity-manager/ethanolx-baseboard.json b/meta-amd/meta-ethanolx/recipes-phosphor/configuration/entity-manager/ethanolx-baseboard.json
index b95e909..baaeee8 100644
--- a/meta-amd/meta-ethanolx/recipes-phosphor/configuration/entity-manager/ethanolx-baseboard.json
+++ b/meta-amd/meta-ethanolx/recipes-phosphor/configuration/entity-manager/ethanolx-baseboard.json
@@ -1475,5 +1475,6 @@
         "Model": "EthanolX",
         "PartNumber": "109-H43111-00A_02",
         "SerialNumber": "EX782B"
-    }
+    },
+    "xyz.openbmc_project.Inventory.Item.System": {}
 }