configurations: harma: add SparePartNumber

Support xyz.openbmc_project.Inventory.Decorator.Asset with
SparePartNumber in harma.

Change-Id: I910f91ae0eaabe40b5e1caf4f0df2cb9c4aa9801
Signed-off-by: Peter Yin <peter.yin@quantatw.com>
diff --git a/configurations/harma_mb.json b/configurations/harma_mb.json
index 973e404..24f1f9b 100644
--- a/configurations/harma_mb.json
+++ b/configurations/harma_mb.json
@@ -1017,7 +1017,8 @@
         "Manufacturer": "$BOARD_MANUFACTURER",
         "Model": "$BOARD_PRODUCT_NAME",
         "PartNumber": "$BOARD_PART_NUMBER",
-        "SerialNumber": "$BOARD_SERIAL_NUMBER"
+        "SerialNumber": "$BOARD_SERIAL_NUMBER",
+        "SparePartNumber": "$BOARD_INFO_AM1"
     },
     "xyz.openbmc_project.Inventory.Item.Board.Motherboard": {
         "ProductId": 1