configurations: harma: modify product information

To modify product information from PRODUCT to BOARD and add
xyz.openbmc_project.Inventory.Item.Board.Motherboard interface in MB.

Change-Id: I86b6dae1fceead54e63a4774f2d3f3d3de0e779a
Signed-off-by: Peter Yin <peter.yin@quantatw.com>
diff --git a/configurations/minerva_pttv.json b/configurations/minerva_pttv.json
index bc1df6b..147f047 100644
--- a/configurations/minerva_pttv.json
+++ b/configurations/minerva_pttv.json
@@ -373,9 +373,9 @@
     "Probe": "xyz.openbmc_project.FruDevice({'BOARD_PRODUCT_NAME': 'Minerva PTTV '})",
     "Type": "Board",
     "xyz.openbmc_project.Inventory.Decorator.Asset": {
-        "Manufacturer": "$PRODUCT_MANUFACTURER",
-        "Model": "$PRODUCT_PRODUCT_NAME",
-        "PartNumber": "$PRODUCT_PART_NUMBER",
-        "SerialNumber": "$PRODUCT_SERIAL_NUMBER"
+        "Manufacturer": "$BOARD_MANUFACTURER",
+        "Model": "$BOARD_PRODUCT_NAME",
+        "PartNumber": "$BOARD_PART_NUMBER",
+        "SerialNumber": "$BOARD_SERIAL_NUMBER"
     }
 }