configurations: minerva: add SparePartNumber

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

Change-Id: I85244825e85cc0cca3b32d5b82210a1825b45bb2
Signed-off-by: Yi-Shum <EasonChen1@quantatw.com>
diff --git a/configurations/minerva_fanboard.json b/configurations/minerva_fanboard.json
index 4701416..e74c7d7 100644
--- a/configurations/minerva_fanboard.json
+++ b/configurations/minerva_fanboard.json
@@ -426,7 +426,8 @@
             "Manufacturer": "$BOARD_MANUFACTURER",
             "Model": "$BOARD_PRODUCT_NAME",
             "PartNumber": "$BOARD_PART_NUMBER",
-            "SerialNumber": "$BOARD_SERIAL_NUMBER"
+            "SerialNumber": "$BOARD_SERIAL_NUMBER",
+            "SparePartNumber": "$BOARD_INFO_AM1"
         }
     },
     {
@@ -856,7 +857,8 @@
             "Manufacturer": "$BOARD_MANUFACTURER",
             "Model": "$BOARD_PRODUCT_NAME",
             "PartNumber": "$BOARD_PART_NUMBER",
-            "SerialNumber": "$BOARD_SERIAL_NUMBER"
+            "SerialNumber": "$BOARD_SERIAL_NUMBER",
+            "SparePartNumber": "$BOARD_INFO_AM1"
         }
     },
     {
@@ -1286,7 +1288,8 @@
             "Manufacturer": "$BOARD_MANUFACTURER",
             "Model": "$BOARD_PRODUCT_NAME",
             "PartNumber": "$BOARD_PART_NUMBER",
-            "SerialNumber": "$BOARD_SERIAL_NUMBER"
+            "SerialNumber": "$BOARD_SERIAL_NUMBER",
+            "SparePartNumber": "$BOARD_INFO_AM1"
         }
     }
 ]