facebook: minerva: Add Asset field for Minerva cmm boards

Tested:
    "system/board/CableCartridgeTop": {
        "Decorator.Asset": {
            "Manufacturer": "Unknown",
            "Model": "Unknown",
            "PartNumber": "Unknown",
            "SerialNumber": "Unknown",
            "SparePartNumber": "Unknown"
        },
        "Decorator.AssetTag": {
            "AssetTag": "Unknown"
        },
        "Item.Board": {
            "Name": "CableCartridgeTop",
            "Type": "Board"
        }
    }

Change-Id: I7c1713b75066272ce1f273927d17aefe156300f6
Signed-off-by: Prabha Veerubhotla <vvlprabha@gmail.com>
diff --git a/configurations/meta/minerva_cmm_misc_boards.json b/configurations/meta/minerva_cmm_misc_boards.json
index 77e87b4..1343075 100644
--- a/configurations/meta/minerva_cmm_misc_boards.json
+++ b/configurations/meta/minerva_cmm_misc_boards.json
@@ -6,5 +6,12 @@
         "OR",
         "xyz.openbmc_project.Inventory.Source.DevicePresence({'Name': 'BCBCable*'})"
     ],
-    "Type": "Board"
+    "Type": "Board",
+    "xyz.openbmc_project.Inventory.Decorator.Asset": {
+        "Manufacturer": "Unknown",
+        "Model": "Unknown",
+        "PartNumber": "Unknown",
+        "SerialNumber": "Unknown",
+        "SparePartNumber": "Unknown"
+    }
 }